When I did the TDSA pistol course they stressed focusing on trigger reset and taking up slack. Several thousand rounds later and I was shooting the [borrowed] Glock 9mm to perfection.... You really have to focus on a steady pull and steady reset.
If it weren't impractically expensive to produce, there might be a market for a dummy Glock/MP/XD type practice pistol with a resetting trigger.
In the meantime, it's back to the reloading bench for me.