I've used an open bridge pretty much exclusively for 30-some years of regular play, daily play for the past several years.So with all of you experts here --- who among you actually shot pool (not snooker) for a full year or more with a V-bridge? Anyone? Oh that's right... I did. And I did it on the women's pro tour. Here are two things I learned from that experience. 1.) A V-bridge is much more accurate for aiming --- first because you can see more and second because with a closed bridge, it's nearly impossible for the third finger to be exactly parallel to the table. The pool cue is always resting on a slight angle with a closed bridge. 2.) I had trouble power drawing the cue ball with an open bridge. I don't know whether it was psychological or physical --- probably some of both, but my pool cue was bouncing all over the place, no matter how much I tried to secure it in place. So for me that year, I used a V bridge for all shots except for a power draw. The imperfection of the closed bridge was less of a problem than the lack of control I had over the bouncing cue stick with the V Bridge.
Talk about your direct experiences, people --- not your theories.
I agree it's much better for aiming, including confirming your vision/cue alignment - that's why I like it.
I also like the benefit of being able to get lower than with a closed bridge.
As for the shaft jumping around, the solution to that for me is NOT to do something with the grip or the stroke to "control" it, but simply to recognize it doesn't matter to the shot and learn to ignore it. Takes some practice and not everybody's cup of tea.
pj
chgo