First, I'm glad that Glock got you out a label...sometimes it just takes getting the right (or not getting the wrong) person on the phone to move things along.
Re: trigger work, one of my big "Aha!" moments in shooting was when Larry Vickers explained prepping vs. pinning the trigger. Like @
HCM said, pinning the trigger while the gun cycles, then easing it forward to the reset is inefficient; the gun is out of commission while the slide cycles and the muzzle rises during recoil, and riding the reset only adds to that time once the gun returns to level. The way Vickers explained it was to relax the trigger finger during recoil (as opposed to actively trying to move it off the trigger), and allowing the trigger spring to push the trigger and your finger forward. If you do this in the dead time while the gun is moving through its recoil cycle, when the gun settles, you will be ready to break your next shot instead of having to then work through the release, feel the click, and at that point be ready to fire again.