Thanks for the info. I think you see where I'm going. Looking at the price of the NAZA units, I was thinking it might be worth it to buy another Phantom, just for the NAZA, and have a lot of spare Phantom parts. I had forgot about the compass being on the leg, but that's no big deal. I just bought and installed a NAZA lite, on a hex I have, and I'm pretty happy with it.