Wow, didn't expect so many replies. Great discussion!
Anyway, first let me rephrase my wording in my first post concerning the IPSC shooter I mentioned in the first post: he did NOT
forget the safety on, indeed not. He just couldn't disengage it meaning he tried to maneuver it but when the sights were aligned and he pulled the trigger the safety was still on atleast to the degree that it prevented the gun from firing. If someone here thinks I'm bs:ing everybody on this point you can pm me and I'll tell you in more detail what/who/where/when but I wouldn't feel comfortable posting it on the public board.
He's not the only shooter I've seen fail to disengage the safety when the timer rings, a couple of other shooters far more experienced than I (both have a couple of local IPSC tournaments under their belts, don't know anything about their ranking) have also managed to leave the safety on in a similiar setting. I don't think any of them actually forgot all about the safety, they just couldn't disengage it for one reason or another.
Are there shooters here who practice force on force drills and have never failed to disengage the safety when it counts? I mean 100%? In this video, at 1:55 there's a drill in which the defender has a gun (couldn't find a better ecqc video):
http://uk.youtube.com/watch?v=c0fPL4f3Eqc
I'm not a 100% newbie although I consider myself one: I have just one gun (XD9) which I've had for a few 6 months now, put 1050 rounds through it so far and, as I said, do dry fire practice 30mins a day (skipping a Sunday here and there) and I've fired other guns on the range but have next to nothing experience with them. I'm just trying to figure out whether to transition to manual safety guns such as the 1911 or the CZ 75B Compact or stick with the non manual safety guns such as the XDs, CZ PCRs, P-01s etc.
As for the ability to execute fine motor skills in a high stress situation, I do that pretty regurarly when performing with the guitar so it's no rare feat if even I can do it. The difference being that if I muck up on stage it doesn't get me killed (except when the band gets their hands on me after the show
).
Anyway, I'm starting to get a clearer picture now:
Neither method (thumb safety vs no thumb safety) is superior but depends on the preferences and the nature of the shooter which works best, right?
A person who has shot manual safety guns for the most part might be apt to lose time trying to disengage a Glock safety that isn't there while a shooter new to the manual safety mechanism might fumble with it when it counts.
Thanks for all the thoughts, folks, cleared up a few of my doubts.