While I've not tried it, I saw this (maybe in a search, or maybe a recent thread here?). The
EHUD Appendix carry holster.
Might as well get a holster specifically made for this method of carry (which is purported by many in the know as being the fastest draw there is). This one carries nice and high, good for comfort and draw I'd imagine. I doubt I could do it in my present (overweight) state, but if I were to slim down I'd sure give it a try!