Brand new fpv pilot. I thought I had done enough research on everything but clearly I'm still lacking some knowledge. I bought dji goggles, iflight nazgul5 hd V2 6s with crossfire, and a tbs tango 2. Bound everything, connected to betaflight, double checked fc inputs and they match the radio and are within parameters, arming the drone starts the motors and props are in the correct direction of motor rotation, 6s 1300mah battery fully charged......and here's where I'm stuck. Full throttle input and the drone won't take off. Motors ramp up but no liftoff. Anyone have an idea on what im missing? Only drone I've flown before was a mavic air. I do have some programming knowledge as well as I fly the mq-9 reaper for the military so feel free to make me feel as stupid as I do