Published in Golf Digest
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Gary Player Endorsed Pro*Feel Golf International's Master Groover as the best ever Completely Correct Golf Swing Training Aid.

AFTER TESTING THE "MASTER GROOVER" THE VP OF THE U.S.P.G.A. CONGRATULATED MIKE ON HIS INVENTION SAYING, "IT DOES SO QUICKLY WHAT WE THOUGHT WAS ABSOLUTELY IMPOSSIBLE TO DO, BUT IT DOES IT SO EASILY AND SIMPLY IT'S QUITE AMAZING. I DON'T KNOW HOW YOU CAME UP WITH IT, BUT IT'S BRILLIANT!  CONGRATULATIONS !"