When we were issued Beretta 92 INOX 9mm pistols, hilarity would ensue on the firing line when the commands "Scan, Check Six, De-cock, and holster" were issued by the instructor.
I'd be securely in leather looking around at the others trying to figure out how to de-cock, using their off hands to look for the slide mounted safety, watching some mistakenly eject magazines with live rounds in them, pushing down on the slide stop/release on a closed action........
In those cop's defense, we never have really trained......more like familiarization courses done on the cheap because the budget was all that really mattered.
Whatever you decide, train a lot until it becomes autonomic.....then train some more.
Regards.