Hi Philip,

The bezel weights on the 910 family of metals and, similarly, on the new 913 drivers, fairway and hybrids are really to enable swingweights to be maintained if a shaft length, shaft weight or grip weight are altered.

There is a chance that altering the bezel weight can shift the centre of gravity of the club (albeit very, very slightly), which could, in turn, have a marginal effect on launch and spin. But this would have significantly less effect on launch conditions than the alterations that can be made through the selection of the correct shaft or the changes that can be made to loft and lie using the SureFit Tour hosel.

In reality, because every player swings the club differently, and will react to changes in swing weight differently, it's very difficult to suggest what impact changing the weight would have to a player without seeing their ball flight. I can only recommend being fitted properly, using a launch monitor, to see what works best for you.

Hope that this helps.