Just spitballin here....but
You probably should qualify your criteria into disciplines.Are we talking
Could go on a loong discussion just based on what crossovers there are on each of the above.And then break down THAT discussion into physical(muscle memory),mental,practical.
"How" you practice is vital.Whether it's tactical or target.....only thing is,they may have completely different regimens?
How "much" you practice.Usually varies between not only disciplines....but individuals.Ex:I know there's a match/tourney coming up on "this" exact date.I'll shoot(ha) for that in practice.You can not say that from a SD aspect.
Break it down more.....exactly what are you trying to accomplish with your,in this case,dry-fire practice?For me,it's trigger control with a Dbl action revolver.I spend as MUCH time slowly releasing trigger as I do pulling it.This is where I"M needing practice.....it's trigger finger muscle memory.