JMPeters,
two you can possibly sanp your wrist if the gun has a sufficent enough blowback,
How is it going to snap your wrist?
MOA,
Correct me if I am wrong, but are not some semi-auto handguns a bit finicky about how they are fired?
Yes, and some of them are subject to failure from "limp wristing" and other "user induced" failures.
I suggest that everyone who thinks they may, God forbid, have to use their firearm in a defensive role, practice firing it in every possible hold. Upright, on either side, upside down and every angle in between, and with both strong and weak hands. If it won't function, no matter how it is held, it is best to get one that will. At least by trying you will know what it is capable of.
flatdog,
Now try holding it upside down and using your little finger on the trigger. If you cheat and use the sights, you will probably be just as surprised by the results.
As for the "jabbing" motion adding feet per second, well maybe 2 or 3 not enough to count. However, if you move the weapon through an arc, like a hammer, you know - the way they did in the old westerns, it increases the muzzle velocity by 50- 60 fps. This is a much greater gain and judging by the number of guns shot out of BG's hands in those old movies does not affect accuracy at all.
DM