Ahh yes, the mental issues of doing this. When I studied this out, I noted two things. The editor from Golf Mag says this, "Conventional wisdom says that when you putt, you should look at the ball for the duration of your stroke, and keep your eyes on that spot until well after the ball has been struck." Read more:
http://www.golf.com/...l#ixzz1RQLP8HP0 But the quote comes from the article entitled, "The New Way to Putt: Look at the hole". There are examples of focusing on the intended issue, for example the rim playing basketball. Hence the object is not to strike the ball but rather, to stoke it into the hole, therefore the target is the hole and contract with the ball as merely a step in that process.

They, (Golf Mag and a Top 100 teacher) did a test on this. "
The Unconventional Theory: You should look at the hole — not the ball — from the moment you set the club behind the ball until you complete your putting stroke." I won't elaborate too much, they tested 40 players, the results? Results: "
The Shocking Results! Long putts end up significantly closer to the hole when you look at the hole while making your stroke. On average, after all was said and done, on putts between 28 feet and 43 feet in length, the experimental group (those who looked at the hole) had slightly less than 28 inches remaining to the hole. By comparison, on the same long putts, the control group (those who looked at the ball) left themselves nearly 37 inches remaining to the hole. That means the experimental group was 24 percent closer, 9 inches that could be the difference between a two-putt and a three-putt.
swbyps, on 07 July 2011 - 12:19 AM, said:
I have a friend who does this and he is pretty spot on inside 10ft. I tried it for about 10 minutes but I just couldnt get over not looking at the object I intend to hit.