I've gone back to practicing the NSR (non-standard response) for the majority of my range time.
The NSR is firing a random number of shots per draw/target rather than a set number.
For me that number is usually 0 to 5.
I first heard about the NSR in a Jeff Gonzales pistol class back in 2002 or so, and it makes sense to not have a 2 shots per draw habit ingrained because outside of USPSA/IDPA 2 shots may not be enough to "neutralize" or may be two too many.
The reason I'm devoting more range time to it is I've found myself in a rut of not only firing with every draw, but automatically firing two shots per draw and then either transitioning or evaluating due to most of my shooting under pressure lately has been in competition and that's the most efficient way to shoot targets in matches.
To break that rut I've gone back to shooting anywhere from zero to 5 or 6 shots per target at the buzzer unless it's a specific drill like a Bill or FAST.
For a while I found myself hesitating to take the third shot or worse having a hard time not taking the first shot.
When I set up multiple target practice stages/scenarios the "2 shots per" habit is really hard to break.
Speaking of shooting with a timer "buzzer". I've also gone back to using random visual or auditory stimulus as my "go signal" in addition to using a timer buzzer.
The auditory signals are when there range I use is fairly empty I'll wait for someone in another bay to fire their gun and that's my "go".
For a visual I'll pick out something like a styrofoam cup on the berm and when the wind moves it that's my "go" (works good out here where the wind is almost always going to gust every few minutes).
Just something I've added back into my range time and interested in others thoughts on the subject.