The S2S Cobalt series is designed in discrete AA and A flexes for golfers with swing speeds under 80mph who have a smooth, passive transition and an early to mid-release. The bend profile remains very soft in the butt section and responsive in the tip section to promote higher launch and improved energy transfer for players with lower downswing force.

Updated Hybrid Iron Shaft Design: The S2S Cobalt hybrid iron shafts are now produced with a 0.370” tip diameter. This change allows the same shaft model to be installed directly into all hybrids and irons in the 735CL set without the need for an additional shaft.

Importantly, the original Ruby Lite bend profile has been retained. Through careful re-engineering of the wall structure and geometry, we have replicated the same stiffness distribution and performance characteristics despite the increase in tip diameter. Launch, feel, and flex progression remain consistent with the original design intent.

This refinement simplifies inventory and club building. The complete 735CL set can now be built using just two shaft models:

• One wood shaft with 0.335” tip diameter
• One hybrid iron shaft with 0.370” tip diameter

The S2S Cobalt provides a purpose-built option for sub-80mph golfers seeking a lightweight, high-launch profile with smooth overall feel and consistent performance throughout the set.