Again, most people coming from revolvers to DA/SA autos come all the way off the trigger between shots. That's how we shoot revolvers.
BUT that's the worst way to shoot DA/SA autos. Like I said the single action reset is fairly short, it only requires partial forward travel to reset.
What happens to most people, who are coming from revolvers, is they come completely off the trigger and then press like they're expecting another DA press, BUT its just pre-travel and they end up hammering the SA break.
This causes the low center hit.
Now before anyone brings up Robby Leatham yes I've seen his videos, met and spoken to him once or twice.
The issue is Robby is a freak, in a good way. He's a big man with big hands and can squeeze a Glock so hard he has to back off or the magazine will not eject. Anyway Robby says trigger reset does not matter. I'm saying for HIM it may not matter but my grip, and 99.999% of most people, is no where near his. He can hold a handgun rock steady and hammer the trigger faster then most people can see. BUT that's him, not 99.999% of shooters.