I am looking at going to med. only and had an interesting discussion on another thread on this subject. MB and I went into the math of surface area of a 2 deep 10 frame to an 8 frame box set up with the same surface area (foundation) and that was 4 boxes. I am under 10 hives but I still worry about the stability of an 8 frame hive that has 4 boxes of brood and 3-4 boxes of harvest honey area. Other than that I do like the idea and I am negotiating with Janet at Country Rubes for my med. box order, much cheaper for a small scale guy like me instead of building the equipment for hot wax dipping like MB does.