I'm starting to wonder... I've had several problems with this unit and was ready to throw in the towel. I've even ordered a Mavic Pro. So I take the damn thing out today, to one of my usual practice spots and damn if it didn't preform perfectly! I ran thru all 3 batteries without any issues whatsoever. No compass calibrations, no lost gps, I got 1500' of distance without any problems. Seriously? I really didn't plan to ever fly it again but thought I'd give it a go for the hell of it. Yeesh. There are so many things I like about the system and the lack of DJI's restrictions is one of them! I guess I'll see once I get my Mavic.