I have been flying the DX6i/6200 kit with my King2.
I recently bought a 6100e to install in the king, so I could move the 6200 RX to my 450 build. The 6100e failed in less than 10 minutes, crashing my king. I could hear a capacitor rattling around inside the casing when I inspected it. It went back to Spektrum and they sent a new replacement.
I installed the replacement and the same capacitor broke off in less than 20 minutes. It really tore up the head this time too. Dammit!
I took it apart and the capacitor sits on long legs that are bent at 90 degrees with no support for the capacitor. The legs broke at the top of the solder, due to normal vibration.
I soldered it back on and hot glued it to the board.