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When facing a long putt, rely on your eyes and hold the finish
Are you forty, fifty, eighty feet away from the cup? Whether you want to lag or hole that long putt, the skill lies in your eyes and follow-through. Look at the target and take a couple of practice putts to activate your muscle memory, to reinforce the hand-eye coordination needed for a putt of that distance. Hit it solid and hold the finish – even if you are lagging the ball toward the cup, you don't want to quit on the putt, and holding the finish means you won't.
Source: GolfLink, February 11, 20222