I use the same process but once they're turned, I give the ferrule one complete turn on an acetone-soaked wad of paper towel then let them air dry (about 30 seconds). They do get tiny concentric lines around them from the paper towel but they're wicked shiny!
Do you use the chamois after they're dry or do you apply the accetone to the chamois? I've been looking for a method that will not leave those tiny lines in the ferrule. Also, I find the linen belt leaves a little crown to the profile of the ferrule but they're all consistent.
Well, it looks like I answered your question with more of my own. What a bummer.[:0]