My ugly, 'square', pedestrian, EDC, Glock Model 21 hasn't so much as hiccuped on me in the last 8,000 rounds. Pull the trigger and you're going to get the, 'Bang!'
Just how good a self-defense pistol do I need to carry in order to handle some pissed off ex-convict? What we're really considering here is ATTITUDE and regular PRACTICE. I am going to agree that because it's a higher pressure round, 9mm does require more concentration and grip control to shoot well.
Wal-Mart's crap, 'range ammo' does, indeed, cost another 4 or 5 dollars per 50 rounds over 9mm; but, as far as I'm concerned, it's money well spent. If you do a lot of shooting find someone to reload for you.