Do we need another "I hate Glock" set of posts or "Buy a Glock" set of posts?
I'm really not reading this thread as meant in that way, and I'm someone who usually calls that out when I see it.
I've done tactical classes, a fair amount of them at this point and at places that see a lot of DA/SA pistols. This doesn't make me an expert, it's simply a background of what I'm basing this on. When the shooter goes back to a ready position the notion is to decock. Are you going to remember to do this perfectly every time? I honestly don't know. I also don't know if people are going to keep their fingers off the triggers at all times. But just because people are fallible doesn't, to me, mean we should abandon the goal. I still tell people to keep their fingers off triggers when possible, just like I tell them to remember to decock. It takes a lot of repetitions to become an ingrained habit, but it will get to as close as possible to that point.
I do think there are extremes. For instance in target transitions, should you decock? My opinion is no as there's still an active threat. That said I know some places that go to the extreme of saying a safety or decock should be done when transitioning targets as there may be something in he background during the transition that you want added safety to avoid shooting. I'm just presenting views.
get a cheap laser and learn to stroke thru the DA pull rapidly and repeatedly
Eh, idk if I agree with rapidly and repeatedly.
There's an old drill called the wall drill. Status check the firearm to make sure that it's clear, both magazine and chamber. Do that again. Then find a blank wall, nothing on it to attract the eye. I like to use a basement wall or at least a wall facing the safest direction relative to your house as possible (as with any dry fire it's paramount to ensure status for safety). Get in a firing stance with the pistol out in your hands as if you were pointing at a target straight ahead. Move up and press the muzzle against the wall, then back off an inch or so. The reason to be this close is because your attention should be entirely on that front sight. Then slowly at first press the trigger through its travel until it drops. The goal is to see as little motion in the front sight as possible. With a DA trigger this isn't always easy. Keep doing this drill for say 10 minutes or so a day. At some point you're going to get fatigue in your hands and I find you start reinforcing negative tendencies if you do the drill too long. I say slowly because for me personally I find practicing it slower tends to reinforce the muscle control I want. Then when I do an actual drill I pick up the pace. You can practice pressing the trigger faster as well, I'm just saying have some caution to prevent yourself from jerking the trigger.
The above drill is something I recommend to beginners and experienced shooters. If I'm getting lax with my training at times I find I'll start jerking the pistol in anticipation of the recoil. A week of doing the above drill usually gets me back on track. For the record I do that drill regardless of trigger type.
Lastly, I'd recommend a hand exerciser. I recommend this also regardless of trigger type, but the difference is more noticeable with DA. I like ProHands exercisers as you can exercise all fingers individually, but that's just me. They also offer different weights from Light all the way to Extra Extra Heavy so you can work up as you build strength.