This copter is so nerve racking. I have done everything to try to get it airborne to no avail. We completely rebuilt 130x, (2) mcpxBLs, 120 Sr, blade Sr, 270 CFX, and a 360 cfx. But this helicopter is pissing me off. I can get NO HELP from blade. They just send me parts upon parts. All I need is a little info on the proprietary programming of the RX. ....update, I installed the new RX and it just dove off to the right after a decent liftoff. It hovered fine for awhile then did a wild right dive. It took all I had to get it back on the skids in one piece. Please advise if,you have any suggestions.