my motor doesnt engage until i move the stick 3/4 the way up and then it goes full power i think but the curve is really bad...... it goes from almost an idle to full in 3 clicks so would i need to program the esc or something because im not using an expensive radio i just have a cheap futaba skyspot 4 and also from 3/4 throttle down the motor does nothing! im new to electrics so idk if this is normal but someone please help me