What smash factor should I expect on a TrackMan or GCQuad?

Smash factor measures energy transfer efficiency (Ball Speed ÷ Clubhead Speed). The legal USGA maximum limit is 1.50. Tour pros consistently average 1.48 to 1.50 with a driver. If your launch monitor numbers show a smash factor below 1.43, you are missing the center of the face, and shortening your shaft by a half inch is usually the fastest fix.

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