I ordered the G2 raptor with the aluminum up grade and it does not work I can't6 get it to hold . when I throttle up then throttle down the rotors go crazy. It6 has wrecked the tail boom twice and I have not evev got it off the ground. I am looking at getting the rotor head off of CNCHelicopter For the walkera 36 It looks like it is alot better built. I would like to get the lighting Tri blade but don't know if it fits