If Serpa defenders wish to insist that the real reason is that Serpa users are actually less intelligent, less skilled, and/or more careless than the users of other holsters then they are welcome to make that argument.
You're the one making that argument. I'm calling it like it is. The Serpa users that have this particular ND are less coordinated and/or more careless than average.
This is the same argument as "Glocks are flawed." No they're not. If you want a weapon that EVERYONE can use without hurting themselves, then you'd end up with a Nerf toy.
Some people can't pat their head and rub their belly at the same time. Some people can't chew gun and walk at the same time. Some people can't use a Serpa holster without shooting themselves in the leg. And some people just shouldn't handle firearms, cars, or heavy machinery.
To me that [being less coordinated or more careless than the average bear] is still a good reason to avoid the Serpa.
Yup. There's no shame in admitting you can't be trusted to handle a Glock, or a Toyota, or a Serpa holster.
Therefore, I think (and smarter more experienced people than me also think) that there is something about the design of the Serpa holster that increases the chances of an accident happening during the draw.
It's obvious what is happening. The same finger is called upon to do two things. The people that have ND's have it in their head to use this finger to 1. release holster 2. pull trigger.
The people that can safely use a Serpa have 2 different actions for that finger. 1. Release holster 2. keep finger straight and off trigger. And they're also the type of people that can probably chew gum and walk at the same time.
I put my straight trigger finger against the side of the slide as I draw and aim, no matter how much of a hurry I'm in. The button on a Serpa is positioned so that it gets pressed automatically when I do this. My finger does this no matter what type of holster I'm using, and no matter what kind of action or safety my pistol has. Then again, I'm not trying to break any records. If you ARE trying to break records, then you'll need to take some shortcuts - at your own risk.