I just got a Hv-85 for my trex 600. I am running an XL motor with a 11 tooth pinion gear. The highest headspeed i can get out of it is 2100 rpm. The esc will detect my low throttle point but when i give it full throttle the esc just flashes instead of going solid red like the manual says. But other than that it seems to be ok. i am really frustrated and need help. I have tried everything.