Checking the pros putting strokes

I was watching the British Open (now called "The Open") today and was interested in how far some of the players lean over for putting, as that is the key ingredient in my new putting stroke.  I was surprised to see a large number, maybe 30%, who lean over quite far and whose shoulders do not noticably move toward or away from the head, another critical feature of the stroke.  That does not mean they are bent over far enough or getting the correct shoulder movement though, for the simple reason that I don't know if it's possible to see this movement accurately.  In addition, it is possible to have the prescribed shoulder movement, without bending over far enough,  and still not be doing the stroke. In this case, the shoulders move in a different plane than the putter and arms, the clubface is open during the backswing and closed during the followthrough, and the elbows have to bend and unbend a little to allow the two planes to be different.  This elbow movement is difficult to control.  And I just can't see it on TV.  

All I can say for sure is that the angle to which these players were bending over was not quite as far as mine.  So I don't think they got the benefits of the stroke.   If the stroke is done right, the shoulders, elbows, hands and putter move all in one piece without the shoulders getting lifted off or pressed down into the rib cage.  Rather, the shoulders just slide on top of the rib cage.  The muscles that pull the shoulders down toward the rib cage or raise them off the rib cage toward the head are very difficult to control, for me anyway, so I benefitted from eliminating the movement completely. To try this yourself, you can bend over further and further until the one-piece shoulder-arm-putter movement occurs without the undesirable shoulder movement.  This new movement keeps the face square to the swing plane at all times and allows more concentration on putter speed.