Jeff Summitt
Joined: Jan 13, 2006
Messages: 2541
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The square profile is the easiest way to increase the moment of inertia given the same heel-to-toe and face-to-back dimensions. On paper, these are more forgiving drivers heads. Remember, the club is a culmination of other factors besides just the head, like the shafts, length, weight, etc. and the reason why the older Callaway head may have worked well for you. But this game is also played between the ears so if you are not confident in the way the club looks at address, then chances are you won't hit it that well.
Jeff Summitt
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