I mean the headspeed. once the speed is lost, so is control. I ve lost it so bad the right stick does nothing. You say you increse the collective and the motor stalls, How? The motor will bog for sure. Espically if the pitch is to high. I havent ran a stock motor in so long so Im not sure. the venom fireball is only $15 so the price was a no brainer. At full + or - pitch the heli will bog but it climbs out very fast. It sill sound like your pulling to much pitch. It does take practice. Ill try to load these clips at the rcuniverse video site. The pics were on 3-24-06. its cold but Ive learned to fly with cold hands. After the flight its time to warm up. The batteries dont last long in the cold anyways.