Rick I think you touched on a good point without knowing it (or maybe you did
The bolded above is 100% correct, but then that's why we practice. If a player spends a lot of time focusing on a smooth backstroke and slight pause during practice, then after awhile it will become second nature. That's what we should all be striving for in our fundamentals.
Jon,
My point of view is bit different. For one thing I never practiced 'drills' to work on my stroke. I am much more outcome oriented. We rarely if ever shoot the same shot twice in a row. So to me the best 'practice' is to simply play. You can't get more realistic 'practice' than that. Each shot is different & requires a different force & speed. Slow rolling a ball & a full table draw shot are not the same & therefore the stroke should not be the same. But, if one merely focuses on the desired outcome & executing what is necessary to obtain that outcome then the rhythm of the shot will most probably be what is required.
If you note, I believe I said if one is trying to use a natural stroke & not one that is contrived for some reason. If one practices a stroke with a set pause, then that grooved rhythm will not be conducive to all types of shots. I guess if one groves a stroke that is the average of strokes required then one would not be too far off for any particular shot, but it would not be the best for that shot either.
As I've said, I've never really worked on or done drills for my stroke mechanics, as for me all it is is to take the cue straight back & then deliver it straight into the ball with most of my focus on what speed & spin to get the CB where I want to go. I am not a mechanical player, I'm a feel player. I don't select a speed from 1 to 10 & I don't count 1 thousand 1 at the back of my stroke.
We do not have a rigid connection to the cue & the softness of the connection absorbs the transition, similar to a shock absorber in a car. It may be the wrist or it may just be the relatively loose skin & flesh that buffers between the stick & our bones. I've never given my elbow a thought & I've never given pausing in my back stroke a thought. The focus is on the results of the shot & what is required to get those results.
As I have said, most athletic activities are initiated from some form of movement & rarely if ever go from being still straight into the activity. When batting one does not stand perfectly still & wait for the pitcher to throw the ball. When the pitcher winds up the batter coils & then as the ball is thrown the batter steps & pulls the handle of the bat, then if the batter wants to make a swing he releases the bat. The batter does not step, pull the handle of the bat & hold that position until the pitcher throws the ball & then just releases the bat. I know the analogy is not exactly the same as a cue stroke but I hope you can see my point. A bowler does not walk to the line stop & then swing the ball back hold it there for a second & then swing it forward for the release. One throwing a horse shoe does not swing it back and then stop for a second & then throw it. These athletic activities are done from a prior motion. We feel the bat or the ball better when it is moving similar to how it will be moving in the delivery.
The point is that, yes, we want a smooth transition but we do not want bad rhythm & timing. A pause that does not fit can ruin the timing. Please note that I said 'fit'. It can be too long & it can be too short. How does one determine the fit. I would rather not focus on it at all & just let my subconscious determine that from what my intentions are concerning the shot. When you've decided to pull the trigger, why would you want to wait for something to go wrong like loosing your feel for the shot & your feel for moving the cue.
I guess one either plays by feel or one plays mechanically.
If a pause in the back stroke is what works for you that's fine for you. I'm just saying that it may certainly not be for everyone or I would even say most. I'm just offering a different idea & opinion. Each individual will have to make their own determination, as they should.
Best Regards & Wishes,
Rick