I've been doing it for over a year. I actually look at the spot I'm trying to roll the ball to. For a downhill breaker, that spot might be 2 feet left and 4 feet shot. Seems to have improved my lag putting alot.
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A mile from the place that golf calls home
I tried it after reading that article, but it didn't work very well for me - just a comfort thing I believe. I can look at the spot where I'm aiming, but have trouble looking at the hole unless it's close enough that I can easily see both the ball and the hole at once.