I agree with Dave Weatronics is the best out there. We have been Weatronics dealers for a very long time and all I can say is that its the best thing going out there. The technology is far beyond its time, I use Weatronics on all my personal Jets as well as our UAV's for test flights prior to introducing full automation. if you visit Weatronics USA orwww.modellbauusa.comyou can see for your self why it is the best.