I second Dacotah. I did use an overdraw on an old Hoyt Superslam once. I did shoot pretty well with it, but I wouldn' t use one again. Carbons will do the same thing, and you won' t sacrifice anything. If you want to use an overdraw along with carbons, you' ll be getting a pretty light arrow-probably too light to be safe to use with your bow.
I' d say use carbons, and if you really want the shorter arrows, slide your rest back a little to shorten the arrow an inch or so.

peashooter