I installed my gimbal yesterday, including the wires to the NAZA. I installed a lever on my transmitter as well. I adjusted the settings so it moved from straight ahead to straight down. While messing with it tonight, having my FC40 connected to my computer, when I moved it all of the way down, the gimbal would vibrate and sometimes shake pretty badly when I tried to point it straight down. Then it would no go all of the way up to where I had it set before. Unplugging the battery and plugging it back in would set the camera straight ahead again, the it would do the same thing. With some settings, it would vibrate when up all of the way (looking straight ahead). I have to keep changing my settings to get it back the way I want it. I have rerouted some wires and slid a wire tie to keep it from hitting a screw on the frame. The gimbal moves freely in both axis through the ranges of motion. It's beginning to piss me off. What is going wrong? Oh, I ran the calibration on the transmitter, including with the lever. Thanks.