There's nothing wrong with the 185gr ammunition. Since I'm more of a traditionalist I like to shoot the 230gr ammunition, but that's just my personal preference. One thing to keep in mind is when you put a mixture of different grain bullets in the magazine and fire them you could get a variation on point of impact, recoil, and overal fell.
"It's a gun you loaded on Sunday, and shot all week."
"If God didn't create man equal then Sam Colt had made them equal."
"Fast is fine, but accuracy is everything."