I played some practice games over the summer with a guy on the "living 200+ ball runners" list and the topic of open and closed bridges came up. Actually, after a game in which he had a few decent runs in the 30's he asked me to watch his stroke during the next game to see if I picked up on what he was doing differently. In that game, his runs were longer (one in the 80's) and his position on difficult to get on balls was more precise. The difference, was that he was using an open bridge almost exclusively. I think, for me at least, an open bridge improves pocketing ability since you have an uninterrupted look down the shaft to the CB and through the CB to the OB. I also tend to shoot with better speed control on softer to medium speed shots with an open bridge which offers more precise positioning (for shots where a half inch or 1 inch means a lot).
Ron F
Ron F