Not what I am referring to. Sorry. So on you final stroke you pull the cue back. Some bring the tip back the their Bridge hand. Some bring the tip back much shorter. My wife would get chalk on her bridge hand because she brought the tip back that far. I felt it made her very inconsistent and wanted to shorten her stroke. I just don't know what's to short. So it's long back swing vs short back swing.
I agree that hitting the CB where you intend is the main objective.
I think if a player places their tip close to the the CB and uses very little back swing( maybe 3 or 4 inches) they stand the best chance of making the ball because it's unlikely they will miss miss their target on the CB. However as their stroke gets straighter they can keep lengthening the backswing for bigger strokes as they progress
At least that's my theory