I Have a Spectrum DX6I That Was Installed In A Trainer, The First Two Flights Went Without A Hitch,Then The Next Day On The First The Plane Start Doing Loops And Wouldnt Stop . I Handed The Transmitter To My Instructor And he Finally Got the Plane Down AfterSo Many Attemps To Bring It Down.I Removed The Whole radio System And Will Not Use It Again.It Also had Been sent In to Horizon For The Recall Before It was Installed.I Think They Are Junk Will Stick With Futaba.