I could be way off on this . . . but I think Mr. Kelley said that the sole and heel of the club was rounded inorder to accomodate some difference in Plane Angle. Somebody holla?
Whilst rounding the sole and heel may allow 'slight allowances' in the plane angle, it does nothing to change the fact that any change in plane angle will consequently tilt and thus alter the clubface plane. You can however compensate with clubface positioning yet I have serious doubts that it advisable for people to practice these alignments at fix... x degrees toe deep and the score lines x degrees closed to the target at seperation....what happened to precision alignments - this isn't MORAD...
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