I guess I've got a bad GPS unit. I've rarely been able to get 6 satellites locked. When I do, it tends to drop back and forth to 5, which doesn't give me any confidence in RTH. I tried the mod this weekend, no immediate improvement. This morning, I went out, got 9 locked immediately, yeah! Took off, got 10, 11, then 12! Went up about 30 feet, started recording. Everything looked good. Went up to about 50 feet, lock went down to 6, 5, then 4 and the phantom veered in a gust of wind Why does it completely give up with less than 6 anyways? I know that's more accurate, but I'd rather it try RTH with a little less accuracy and land within 20-30 yards of home than just drop out somewhere random. I have no confidence to try waypoints with the GS.