Funny thing. This is a discussion I've been having with a couple people lately.
I've read about the 7 iron theory, and a buddy of mine who is a +5 handicap(that's not -5, he's a PLUS!), says that almost all Country Club people play from the wrong tee boxes.
With the injuries I've had over the last couple years, I could probably move up a bit, but don't want to give away the strokes.
Just my opinion, of course.