Anyways check out this link these guys can unholster and rack the slide faster than most can be ready fully chambered but it does take practice. I'm surprised this video is even still there.
http://www.youtube.com/watch?v=M2OqJtSn4Pk
their slide racking was pretty smooth, what i can't understand is what takes them so long to break their first shot. we won't even talk about how their mag changes went