silly me! I'l check it tonight. I really like the option because it makes fights more random and fun. I'll only use the GC when facing impossible bosses or something. I already suck at the game anyway.
And yes, apparently GC shoulder buttons are never used properly in VC games or in Brawl, you really shouldn't have to press all the way down and I don't think it would be a difficult thing to program such behaviour in the games.