Yes, when I'm using the same type shot time after time after time and they're using "whatever the table tells them"......they will certainly become unraveled after 8-10 hours.
I've seen this happen many, many times.
Using different spins, speeds and judgments (as a result) is very difficult to do, yet this is how the game is typically played.
No wonder players get to a certain level and can't progress, the type of game they are attempting is simply too difficult. Pool is a challenging game, however, when you master one type of shot and STICK TO IT, the game opens up and gets easier.
This "Master Shot" gets incredibly fine-tuned because you use it primarily and can depend on it under any circumstances or pressure situations.
One of my favorite guys to watch was/is Jose Parica because he kept it simple and he was tough in long sets for that reason. I wonder if he is still playing, haven't heard much from him lately.