If you’re like a lot of golfers, you don’t hit all your greens in regulation. Your maintenance stats are probably spotty, too. Odds are you don’t always repair your pitch marks on the putting surface.

Aspinall: One of the most important things is you need to be using either a tee or a single-pronged ball mark repair tool to do it properly. You go vertically down into the middle of the deepest part ...

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