After a lifetime of shooting one becomes aware of just when the trigger breaks and the interval between trigger break and recoil. Not that I could tell you how many milliseconds have elapsed but I can tell the difference between the big honking hammer of a single action and the short, sharp hammer fall of a double action revolver when I fire one after the other. How much difference it may make in shooting results I don't know but it must make some, you don't see many single action revolvers on the bullseye line.
Not debating your ability to be able to judge hammer drop time etc…
I am admitting that I don’t have that ability as many other handgun shooters. Some may say the do, but well, I think I know better. Drop time and accuracy have often been a discussion. Under the most ideal conditions, I suspect it could influence accuracy. But since we are human and not robots, the human error enters and there goes the theory out the window. A few milliseconds would only move a barrel about that much and point of impact would change very little at handgun ranges. Thousand-yard events—the difference may be noticeable—but I am not even sure of that. My opinion…
I too have been shooting handguns since my kid days in the early ‘60’s, but with great enjoyment from 1971 until present…
Never shot competition, so I don’t know what is best for such events…
But maybe I just consider it a hobby and not a matter of life and death in most situations. I miss a few targets and I hit a few targets…
Good-luck…BCB