try to fly the dragon fly. trim it, balanced it, etc. set the servo, swash plate, etc. look perfect. put a training gear. and when i try to fly it, it just wanna fly left. try to trim it to the right, but still nothing. got a 9v 300 mah charger. i charge it for 1,5 hours. but the battery doesn't feel warm at all. the charger did . should i charge it more? and should i screw the main blade tighten until cannot move the blade, or should i loose it a little?help me please... it's my first heli experience.thanks