This question is for the owners/operators of the Fly Sky CT6B, 6 channel R/C TX that are using these on airplanes. I have 3 of these new systems and they are programed from software that I have on my PC; i.e., stick travel, servo direction, etc. I found on one of the TX's, that my left/vertical stick (mode 2) for electric throttle, will not shut the motor down to a stop, even with this stick trim set to minimum. (All three of these radios where attached, in turn, to the same airplane and motor/ESC for this test). This setting is seen when I have this TX attached to my PC running the software program; the minimum stick movement is not at zero. It is the same programing and settings that I am using in the other two TX's, and they work just fine. Therefore, I am wondering if there is a way that I can make a mechanical adjustment or trim pot setting, perhaps, to set the throttle stick for proper operation? Has anyone, with this radio or others, had the same problem and dealt with it, and how did you do it? Thanks to all who help, Crasher.