But if you're doing something like "CQC" training and you're switching between two different models of handgun in two similar but different holsters - you are messing yourself up. You are not training - you're in a constant state of untraining.
Sorry, I have to disagree again.
First, I'm not harping on this for the sake of argument. I really need to know how this can happen before I get someone hurt, not because I'm old and set in my ways (although there is a lot to the latter).
I shoot several pistols/revolvers w/several types different holsters, including two CQC's (one for my Beretta, one for a revolver). Some leather holsters from my custom pancake holster for my 1911s, and Hoyt Breakfront for my duty revolver.
Everyone of them allow for the trigger finger to be extended along the slide or cylinder as the gun comes out.
Our club has some sort of match every other week. USPDA, Steel, ICORE, Run 'n Gun, Bowling pins. All require that you draw from the holster. I always shoot a second gun, requiring a holster change.
I just can't understand how changing gear (holsters and guns) would cause "your finger to fall on the trigger". The CQC requires your finger to lay along side of the holster to release the switch. As you pull the gun out, your finger slides up the holster and falls naturally along the slide, (or along the frame under the cylinder of a revolver), as you pull the gun from the holster, the finger goes to the trigger and you point at and push toward the target.
My two main guns for USPDA are my Beretta (CQC) and my Gold Cup (thumb break). The grip of the pistol is as you start to draw is pretty much the same, forming a V with your thumb and fingers as you come down on the grip, the thumb released the thumb break (if there is one) and goes to the safety to be released as you point toward the target. At the same time, the trigger finger is outside the holster, extended, and falls along side the frame as the gun clears the holster, going to the trigger and you point at the target.
There is a bit of difference in the grip of my revolvers for ICORE. On my M-64 I use my old duty Hoyt break front. With that one you grab the butt of the gun, extend your trigger finger along the out side of the holster and with the thumb and remaining fingers draw the revolver toward the front, and your finger goes to the trigger as you push toward the target. My second gun in ICORE is my 642 pocket revolver. I use it in the Blackhawk CQC, it works the same as the CQCs for my Semis.
The only difference in my "times" is do to my reloading. If the course requires several shots, then of course I'm faster with the Beretta's 18 rounds vs the Colt's 7. But to get the first shot, there is no difference.
I have a lot of different holsters, and I just can't understand how switching would cause you to loose out and go to the trigger while the gun comes out of the holster.
Since this thread started, I've gone out back several times to do some testing. The only way I can do it, is if I make a conscience effort to force my finger on the trigger.
It's all about muscle memory I agree. If you develop that memory to NEVER PUT YOUR FINGER ON THE TRIGGER UNTIL YOU'RE ON TARGET AND READY TO SHOOT. then you're gonna do that regardless of what type holster you use.
If someone here can tell me of a different holster that would cause this problem, please tell me, I'll go buy one to play with. But the Thumb Break VS release on the CQC just doesn't work. I deal with a lot of new shooters and really want to know where I'm wrong in the off chance I get someone hurt.