The man with maybe the best stroke in pool, Allen Hopkins
Although I suspect most folks are scratching their head looking at my title, it is true. His stroke is almost impossible for someone else to duplicate but it is short, concise, and repeatable. He also seems to do everything he needs to do with a cue ball using it and there just isn't much to go wrong with an eight or ten inch stroke!
When talking to a top instructor the subject of stroke has came up several times. His opinion and mine, the approach, the follow-through, neither matter at all except as to how they affect the tiny fraction of a second when the tip is in contact with the cue ball. The preshot routine could look like a Dizzy Dean wind-up, the follow-through could be a half inch or less if our body allowed, it really doesn't matter. What all successful pool players have learned is how to control the tip for the instant or two that the tip is in contact with the cue ball.
The various pump strokes can be every bit as successful as the pendulum, if they are consistent. The pendulum is easier to teach and easier to groove in. Easier to correct when there is a problem too. All this writing about strokes does make me want to play with my pump stroke some. I made a lot of money with it before I knew better. Still tend to revert to it when I feel cramped up on a bar table.
Hu