In regards to Lefty , Little Brit and Hacker---you are all correct. An older (much much older than I) gentleman told me a year ago that your eyes were not designed to focus or look at an object in a vertical position--ie; when you are over a putt and you slightly turn your head to line up---he said look at the putt from behind and infront of the ball and follow through as if you were guiding the ball into the cup--works for me