Smoooth Series Mallet Putters 6 & 7


Smoooth Series Putters

Discontinued Model

Mallet Designs with Tungsten and Steel Weighting for High MOI in Black and White Versions


  • Smoooth models 6 and 7 are mallet style;
  • Two full mallet designs with one heel/toe design each with significant weight addition capability to offer a wide range of putter weight fitting options
  • Forged From Soft 6061 Aluminum with tungsten and steel weighting added to increase the MOI and pinpoint the CG for more consistent roll
  • White versions of the Model 6 and 7 available for wider putter fitting options. White model 6 heel and center bore versions; white model 7 in heel bore only

A 360º view of the Smoooth-6 Putter.

A 360º view of the Smoooth-7 Putter.

Ratings and Reviews

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Rating: 4.6/5 (24 votes cast)


Smoooth Series Mallet Putters 6 & 7, 4.6 out of 5 based on 24 ratings


  1. Tom,

    Are there any new mallet putter head designs on the way? Right now only the S2R series is current, and none of those designs are mallets.

    Would love to have gotten my hands on a Model 6.

    Thank you as always.

    • Brent

      A new series of putter head designs is on the list of things for me to work on for a release sometime in 2019. I am just in the concept stages of this right now so I don’t really have much in the way of concrete info that I can share. Otherwise I would. But it will happen. Thanks so much for your interest !!


  2. Thanks for the reply and I did find a heel shafted series 6 and put a double-bend shaft in. I have been practicing indoors and the putter feels great, and it works for well for me. Can’t wait to get it out on the course. I will hopefully find another series 6 heel bore head to purchase as an extra to keep around for the future.

  3. I really like the Smooth 6. Is is practical / advisable to but a double bend offset shaft into the putter? I happen to like the look and feel I putt better with an offsef putter.

    • BRAD:

      FYI, we did discontinue and close out the Smoooth Series models 6, 7 last year. When we did have them, or if you have found one elsewhere, there were two versions of both, a heel bore and a center bore version. The heel bore Smoooth 6 and 7 took any single bend or double bend putter shaft. The center bore version took any straight shaft. Whenever you have a double bend putter shaft, one of the bends is for the lie angle, the other for offset. There are a lot of different DB Putter shafts around and they will vary in both bends. Most will average putting around 6-10mm of offset on the putter.

      Hope this helps,

  4. Tom,
    Thanks for quick response. Actually I am still interested in answers as I can still purchase used and am trying to decide which model to get.

    • MARK:

      Happy to help. In the Smooth 6 & 7 putter heads, we created both a heel shaft and center shaft option. Only the center shaft version is a face balanced head. The face length is the same for both models at 95mm (3.75″). Face to back dimension is 86mm (3 3/8″). MOI for the two putters is virtually the same at 5,320 g-cm2. The difference between the 6 and 7 is only that the 6 has twin parallel tungsten top weights which form a double alignment aid in addition to very slightly raising the CG in the head, while the 7 has a single tungsten weight from face to back on the top.


  5. Is there a significant difference between the Smooth 6&7 putter models other than appearance? Are both of these face balanced? Do you have MOI numbers and face lengths for these?
    Thanks for your reply.

    • MARK:
      My answers to your questions are most likely a moot point now and not of any value since we just finished closing out all of the Smooth 6 and 7 mallet putter heads last month. And this week we are just in the process of updating everything on the website with the new catalog completion so if the 6 & 7 were there, I am sorry. Since we discontinued them last month, I should have made sure we got them off the website. So there are none of these left in our inventory, I am sorry to say. They had been in the product line since 2005 or 2006 – it was so long even I forgot when I designed them!!! They were retired to make room for two new families of putter head designs that I am in the process of finishing up – got a little behind my original schedule for them so it will be later spring for these new models.

  6. With winter arriving here in the mid-west I decided I was going to get custom fit for a putter to practice over winter. I was recently fit for the Smooth Series Model 5 putter by Jerry Heiser of Heiser Golf in Cedar Falls, IA.

    During the first visit Jerry Heiser zeroed in on what specs I would need in order to get set up properly to the ball and after analyzing my putting stroke from face on what would be a good loft for me to go with. We decided to go with the Smooth Series Model 5 Putter.

    During the second visit he had a Smooth Series Model 5 Putter shafted and ready to be dialed in. Once the length was dialed in perfect, then we put the grip on. After the grip was ready we adjusted the heft.

    All I can say is wow! This putter sets up beautifully! I have never had such an easy time getting into the same set up position over and over again. The two perpendicular white alignment lines on the top of the putter head makes it very easy for me to ensure the face of the putter is square to my target line. The correct “heft”/swingweight/moi makes it very easy for me to repeat a smooth stroke over and over. The feel at impact with this putter is very solid and inspires confidence and the ball rolls so true, no hopping or skidding.

    Needless to say I am extremely pleased by the quality of this putter and the attention to detail of Jerry Heiser at Heiser Golf.

    • Thomas
      Without question you did the right thing to find Jerry and work with him for your fitting needs. I’ve known Jerry for many years in this industry and from that I know that his knowledge and experience in the field is first class and second to none. As such I am not surprised at all that Jerry was able to nail down your best fitting specs so you could gain the benefits from what proper fitting can offer. Good for you!! And thanks so much for taking the time to share your experience with us!!


  7. Tom,

    I’m in process of having a smooth 5 built to my desired specs ( at least what i think is optimal for my putting today…..). I have a few questions:
    1. i can’t see the smooth 5 face too well on your website but is their any grooves or milling on the face? is the face material aluminum? what kind of feel/sound should i expect as compared to say a finely milled stainless steel or a polymer like the taylor made surlyn insert?
    2. will a single bend shaft make much of a difference vs a double bend shaft? 2 months ago i thought i hated offset and plumber necks, but i now may prefer that offset for my stroke as it helps me keep the blade square thru impact
    3. my lie angle is close to 65 as measured by Fred at Perfect Lies ( who built me an incredible set of 560 irons and is now finishing a micro-groove 56 and 3/4 775 hybrids for me, 919 driver around the corner….). My ideal hand height when set-up with my stroke which is more linear is between 30 and 31″. Should i make that extreme of a lie adjustment and cut the length that short? should i leave a little room for possible back weighting, choking down for lag putts etc…? we are getting the tungsten weights and a grip that allows backweights to experiment.
    4. regarding swingweight, would cutting below 33″ make the head awkward and take away from performance/feel? and if I back weight? i am a feel putter, have pretty good hand-eye and like to feel some weight in the head. is D2-D8 range what i should be aiming for?
    5. any thoughts on round vs flat front putter grips? soft vs cord/paddle type grips?
    thanks for your time, love your designs and work

    • JON
      The face of the SMoooth Series putter heads, including model 5, is a highly polished section of the actual 6061 aluminum material from which the middle portion of the model 5 head is made. It is then outlined with an engraved line to distinguish it from the rest of the face area. It is not a separate face insert. The concept is to make the impact area of the face as “friction free” as possible so as to very slightly reduce the chance of an errant stroke from pulling or pushing the ball as far off line as what can happen if the face is rougher such as from milling.

      The difference in using a single vs double bend shaft has to do with your personal preference for whether you like to see some offset of the shaft to the face or not. Some golfers like a little offset in which their hands are a little in front of the face. Others do not. So this is an appearance feature only that caters to a golfer’s confidence in looking down at the putter behind the ball and in helping them feel more comfortable in their alignment of the face to the target line.

      Great to hear that Fred did a good job with your other fitting requirements. But then please excuse me for saying this is becoming common for me to hear this from golfers who work with Fred. In all honesty over the past 3 weeks I have received 4 emails from 4 different golfers who were amazed at Fred’s fitting knowledge and so happy with the results they were prompted to email us to tell us. Good for you that you chose to work with him! In a putter, once your best length is determined, then the lie has to be adjusted either by bending the hosel or by bending the shaft when there is no hosel to make the putter head sit flat on the center of the sole when you are in your most comfortable address position. There is no more to this than that so there is no other thought process involved.

      The model 5 has a substantial weight addition capability in the head through the sole. For every putter fittting, once the length and the grip are chosen for the golfer with the golfer’s definite feedback, then you go about experimenting with different weight addition amounts often over time, to determine what headweight in the end allows you to feel the most comfortable, the most consistent with your stroke. It may take several back and forth experiments with the headweight to get to this point so just be patient.

      Putter grip size is also completely up to the golfer as to what he FEELS allows his hands to feel relaxed on the putter with the least amount of grip tension but with the putter still feeling secure in the hands – and so when you stroke the putter back and through you feel that you are achieving as consistent of a back and through motion as possible with the least amount of conscious effort. This too is largely a matter of trying out different shapes so you can feel the differences and then through process of elimination you arrive on the one that feels best to you, allows you to line up the putter easily and allows your back and through stroke to be as consistent for tempo and accuracy as possible.

      Hope this helps!!


  8. Tom,

    First, I want to say how much I love the 919 driver. I have already sent two friends to my club fitter to get one, after they saw me hit it. I also have your 775 and 730 hybrids. But I want to ask a general question regarding putters (semi mallets). What are the key elements one should look for in a putter? It’s hard to filter through the hype and marketing. I know the quick answer is that putters are a personal preference, but there must be some key guidelines. Also, the shaft length (normal size putter). I measure 34″ wrist to floor. I’m about 5’8″. Is their a chart that shows the correct shaft length. Any advice would be helpful. Thanks.

    • DOUG

      Thanks so much for your comments and questions! That’s really great to hear you like the 919 driver and thanks so much for passing the word on to your friends! We appreciate that very much.

      Boy did you hit the nail on the head with your statement – It’s so hard to filter through the hype and marketing. Truer words were never spoken. I do feel sorry for the golfers who want nothing more than to get the best equipment for their game. No way can a consumer be expected to know even a fraction of what someone like I know about equipment from all my years in design, testing and research. I can relate to what golfers have to go through because I get that whenever I am in the market for some products about which I know nothing for making valid decisions – in the end I just hope I encounter a very honest sales person who has my best interests ahead of his company’s desire to make money or move specific products.

      The most key things in putter fitting surround the length, lie, loft, weight feel and grip size/feel more than they do the putter head. No question the head is important but the putter head’s selection has to center on, 1) a shape that YOU LIKE that you find easy to align for your eye dominance and which breeds confidence in your mind, 2) that within #1 the putter head have as high of an MOI as possible so when you do make contact off center the ball is going to roll a distance that is close to what you’d see from an on center impact for your stroke speed. Beyond that, the putter head should be able to be adjusted for lie so you could get the lie angle to be fit perfectly for your stance, set up and length of the putter. But that’s it for the putter head. Key though are the 5 putter fitting specs I listed.

      For proper length fitting of the putter, the golfer needs to get into his most comfortable stance and posture where the amount he is bent at the waist is as comfortable as possible and free of tension. In this position, the golfer touches the inside of his wrists together. The distance from there to the ground + 1/2″ is the length of the putter. The + 1/2″ is allowing for the lie angle vs vertical measurement of this distance.

      Lie is fit so when the golfer is in his comfortable posture over the ball and has the putter at his best length for that, the center of the putter sole from toe to heel touches the ground – so the putter does not rest on the toe or heel side of the center. Putter weighting usually takes more trial and experimentation because there are no measurements or gauges that can tell us what is the best overall weighting for each golfer. But I can say from recent research that we’ve seen measurable improvement in putting consistency for distance control, push pull reduction and on center hit improvement from using a 60, 80 or 100g counterweight in the butt end of the putter shaft. So much so that with this the golfer doesn’t have to think about the putter head weight as a separate weight fitting parameter of course as long as the putter headweight is within a normal range of around 335g to 350g.

      Grip is then very much an individual feel preference from the golfer which again has to be done on a trial and experimentation. Hope this helps, and thanks again for taking your time to visit the site and offer your comments!!


  9. Hi atom. How does the heal toe weighting of the smooth 5 affect the putter and my putting stroke..

    Does it work differently than other putters.



    • BOB:
      The heavier weights attached out on the end of the toe and heel of the Smooth 5 putter head are there ONLY to increase the MOI of the head so that there is less distance loss when the ball is struck off center. The two weights are of the same mass so this has no effect whatsoever on any golfer’s different stroke action. So whether the golfer has a straight back/straight through stroke or an arc-ing curved stroke, these heel and toe weights on the Smoooth 5 do not affect that in anyway.


  10. Hi Tom, I am considering your smooth series putter #5. , I am currently using a belly putter but at some point will need to go back to something conventional. I like the look of the # 5 but am wondering about lie angle. You did an amazing job with the 929’s as did Ollie with the fitting. Again FYI. My height is 5 ft 4 inches and I believe my number was 32 3\4 inches from my left wrist to the floor. I have always wanted more weight in the head and would probably have the putter at 34 or 35 inches because I use the claw grip and my eyes are not right over the ball at address but close. Reason being , my stroke is much more relaxed with a little reach.

    I have used The brand name heavy putters and am currently using the fisher putter where you can change the face plate depending on the speed of the greens.

    I know these are your designs but you must have a favorite? Have you used the # 5 and do you have any fitting suggestions for me and Ollie?

    I’ve said it before , but your 919 driver with the swing science shaft is spectacular. I’m more accurate and longer and am not using the Harrison shotmaker. Not necessary

    Anyway, any help with the putter would be appreciated


    • BOB

      Thanks very much and we are very pleased to hear that the driver and woods have worked out very well for you with a little help from us and a lot of good help from Ollie to put it all together properly to your final required specifications!

      Putters are really a very individual thing when it comes to the putter HEAD design. What one golfer likes has nothing to do with whether another golfer can putt well or like the same putter head model. Each golfers’ eyes can see the shape, alignment, set up of a putter head a little differently. The Smooth 5 has been a very popular “semi-mallet” type of head with very good, soft feel and very forgiving off center hit performance. BY “smi-mallet” I mean that it is not as broad as a full mallet style design but still is more broad than a conventional blade type heel/toe weighted putter head.

      Because the Smooth 5 is built with a double bend steel putter shaft, that means any LIE angle adjustments have to be made by actually bending the shaft more flat or more upright depending on what the golfer needs. This is a little tricky to do and keep the curve of the shaft intact without a kink, especially if the lie adjustment has to be more than 2* one way or the other. As such, for a player who potentially needs their putter lie to be much flatter, as may be the case with you, we certainly can try to do the bend in the shaft to fit, but I can’t make any promises for success since this is a very tricky thing to bend a curved steel putter shaft. In such cases where a golfer would need a lie that is substantially flatter it may end up being better if the golfer can find a putter head model that has an actual hosel stem that is part of the head design – these types of designs of putters are far, far easier to achieve very flat (or more upright too) lies for a golfer.

      As to determining how flat of a lie you need, here is what I recommend you do with Ollie’s assistance. Using your own putter, have Ollie work with you to determine first what the best LENGTH would be for the putter for you based on your most comfortable posture and arm position with the putter. Once that is known, then you grip down to that point on your putter and take your normal putting stance and posture. Have Ollie note exactly where the sole is touching the ground in terms of how many inches back from the center of the sole. If we then know the length and how many inches the putter is touching on its sole on the ground, then we can calculate the right lie.


  11. Can you tell me the head weight of the Smooth 6 without any weights added to the weight port? I’m assuming 335g? I have an account and would like to see about getting another weight port cover and additional weights if possible.



    • Landon

      yes the as produced headweight of the Smoooth Series 6 and 7 is 335 g with a +/-3 gram tolerance. You can order as many of the 14 gram tungsten weights and weight port medallion covers as you wish because we do offer and sell these individually.

      Thanks much,

    • Thanks a bunch Sir!

  12. I’m interested in adding weight to my Smooth 5 head. is there any informationon the internet on how to open the adjustable weight port and prices for buying weights to insert into the port?

    Thank you in advance.

    Great putter by the way.

    • GEORGE

      The weight port on the sole of the Smoooth Series model 5, 6 and 7 putter heads will accept up to 5 of the 14 gram tungsten weight disks that we offer to go with these putter heads. The putters are designed for more of a permanent weight addition by the clubmaker. The clubmaker would determine through the fitting process what the best headweight would be for the golfer, then build the putter with these weights epoxied into the cavity. The medallion to cover the weight port is then secured by peeling off the paper backing covering the adhesive on the back of the medallion and then pressed firmly into the opening of the weight port cavity. It is not designed to be a screw on/screw off type of weight change situation.

      The medallion can be removed by heating it with a small butane or propane torch to soften the adhesive. A little hole can then be drilled into the medallion and the medallion then can be pried off with a thin rod or object to stick into the drilled hole. Additional weights can then be epoxied into the cavity or weights can be pried out of the cavity again by heating the tungsten disks with the small torch. We offer the tungsten disks as well as replacement medallions.


  13. Just like the name tells: smoooth feeling. Gets the ball rolling very fast. The adjustable weight port is key for true custom putter fitting and building.

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