Hi! I'm selling my current hexacopter to buy a new one, and i'm going to buy a cinestar 6 with the cinestar gimbal and radian. the seller who is my friends friend who is also big in heli filmning in sweden has built it by himself. is there anything i should think about when buying a used cinestar? im going from a dji hexacopter with a lift capazity of 1 kg with an crapy crane 3 gimbal to a cinestar 6 i really hope it will be better.. any tips for a ny cinestar owner? and things i should ask about or look for when i buy it? Thanks in advance!