I know how to jump. It doesn't come up regularly in a game, but I am proficient at this shot enough to be able to consistently utilize it. Sound like the shot you mastered is equivalent to this and falls into this category.
However, there are a lot of shots that I have/had mastered over the years that are available but due to the lack of use, I do not think that I could efficiently perform the shot accurately unless I practice it occasionally.
I think this is what The Renfro was referring to.
Your shot evidently resides in the top of the bag. :smile:
Except I don't think of it as a bag. I understand the concept but I think that we underestimate our ability to recall information about HOW to do things we once learned.
It's entirely possible for us to master something and never forget it. But we don't train our brains to do this so we do end up forgetting how to do what we once learned.
This all comes back to the idea that an amateur practices until they get it right and a pro practices until they can't get it wrong. Because the pro does this then what they know is available to them forever in an instant. For us we practice something until we own it for a moment. When that moment is gone we start forgetting how to do it.
The real problem I have with shot-specific arsenal building is that it rarely takes the underlying principles into account so that the shooter can adapt and improvise when a slightly different situation comes up.
Saying that you have mastered the jump shot is like saying you have mastered the draw shot. Jumping balls is like kicking, banking, follow, draw, etc... it is only one aspect of pool with hundreds of shots contained inside it. You might think you are a good jumper but can you jump into a cluster to hit a specific ball? Can you jump into a six inch space from four feet away? Can you draw your cue ball on a jump shot? Can you play shape from a jump shot? Can you jump-kick with spin? Being able to do all these things consistently is what I call mastery of the jump shot. Being able to perform a jump-kick that you have never even tried before in your life comes from study of the underlying principles and mastery of those principles which are the foundation for jump shots.
This is what I mean. I don't have a bag of shots anymore. I used to. Now I have a much greater understanding so that the range of shots available to me is not limited to only those I have practiced. If I have practiced them then so much the better. But even if faced with a situation I haven't seen before I can rely on knowing how things work to figure out the solution. Don't know if this makes sense but it's made me a much better player overall.