Our goal with the progressive weight distribution was to move the cg to a position that would make the long irons more stable, slightly closer to the toe side of center, and we did accomplish that. Jim’s reference was for the #6 irons, of which both are in the center of the face. On the PTM, the #4 iron horizontal cg is approx. .055″ towards the toe. That’s not much, but it does stabilize the head slightly more on toe side off center hits, which is the most common on the long irons. It is a longer blade length design, and with only .055″ variance there is no feel difference on on center hits with the #4 iron. Our goal is always to have the horizontal cg in the horizontal center of the face, and with some designs, like the PTM, we can modify the weight distribution in each club number to achieve the design goal.
Britt Lindsey
Thank you Jim. I am now confused.
In the description of the PTM says:
“The Progressive Tour Muscle (PTM) cavity is designed to place more weight in the toe of the long irons, increasing stability and forgiveness, and progressing back to a neutral weight distribution on the short irons, producing the trajectory and feel desired by better players”
How can the weight be moved towards the toe in some irons and maintain the CG right in the center of the face?
Thanks for your answer.