Just about every time I watch a pro golfer make a putt within about 10 feet, I see them fall back a step after the ball is just about in the hole.
Why is this? Is they are trying to keep their balance on their heels during the putt, or they are leaning back in suspense as the putt gets closer to the hole.
Phil Mickelson and Jordan Spieth are good examples of pros who do this often.