I was not referencing long or short slide.....I was referencing a yes or no questioned option......
Depth perception plays a role in this as well....Since you can hardly ever get your eyes directly over the CB when placing the tip.....It is much more precise to slide up rather than plolp down right next to.....New players that start a larger distance from the CB than a seasoned player.....may have just have not developed (or measured out) their initial depth perception yet.
I also don't lock out my bridge arm in the air....It is uncomfortable....awkward....and frankly kind of dorky looking.....I also don't know anyone that pulls the grip/stroke arm forward when sliding the bridge forward into final stance.....
Truth be told.....My distance (from CB) is set by the cue, grip hand and back foot.......I take the grip hand in the general area of the cue I think I need depending on the shot......My bridge hand is typically starting from all the way down just above the joint of the cue (arm relaxed/bent) while standing.....Cue/body turns cue along shot line....As I bend down the arm extends and the bridge hand is sliding up the shaft (Down the shot line) and the cue is placed the bridge lands and slides and inch or two into the final stretched position......Off the rail the bridge arm may not even get fully extended....It really depends on the shot.
The cue (and tip) get final adjusted closer to the CB by the Grip/Stroke arm.....(not the bridge hand)....and the grip on the cue is slide forward (or back) accordingly...I really don't know anyone that uses the bridge hand to adjust distance or separation of tip and CB.....
But again....I don't concern myself with bridge hand placement....I let that happen naturally based from cue/shaft placement and is just there to be a stable support for a straight stroke....I am not a believer that the bridge determines the shaft placement....I believe that shaft/cue determines the bridge placement.....as well as my grip/stance/posture/alignment.......so I am probably not a good reference for any of this.
I appreciate your input and feedback.
I'm not theorizing, I've addressed students who bridge hand slide and pull their arm out of position. But yes, you can use the bridge hand to place the cue or vice versa (as you do), based on personal visuals and proprioception.
As for CB distance, I hear what you're saying re: depth perception. However, you said it well, you set your CB distance by including your
back foot. But so many players stand too far from the balls IMO. I see players with 17" bridge lengths who could stand some 7" shots for a while. Dr. Dave just commented on short and long bridges in a good new video . . .
Here are two ways to get people to stand close enough regardless of their chosen bridge length. 1) I can take some measurements then put a tape mark X inches from the table (which still doesn't stop sliding in or tip gap, etc.) or 2) since their left arm is always the same length every day of their adult lives, have them set bridge length while standing as suggested, then have them get down.
Based on 2) without ANY doubt, they will either foul the CB, get the right tip gap, or setup too far away based on their
back foot distance.
You don't need this correction since you slide in and get right in there, and play well. But it's super cool to watch players cut more balls in, lunge and swerve less, simply by standing closer, with guidance.