I stopped shooting competitively almost 30 years ago. I still shoot just not in competition. If I know I will be going to a range for paper shooting, I have found dry firing helps. But disciplined dry firing, no gimmicks, no malfunction drills, just getting to know the trigger of the revolver I will be shooting.
I choose a blank wall with no visible marks, nothing to distract my attention. Using an empty revolver, I align the sights and begin my squeeze. The sights should stay aligned. If the wobble out of alignment I can see that. It takes a couple of cycles but soon the old muscles remember how to squeeze the trigger without disturbing the sights.
Doing this practice improves my scores on paper.
Kevin