Hey all...I've been going thru every post in this forum and I have to say...we've all had the exact same problems. except for the smart vets who know how to take their time and not break anything. thanks to all for the good advise and free flowing info. Anyway...i've got my CX pretty dialed in, except it wont stay in perfect balanced hover...it likes to fly in a four foot circle in reverse, going clockwise...basically like a reverse donut in a car. I've got all rotation trims max'd out..transmitter and pot. any thoughts? i can't tell if its one rotor going faster than another or if its a pitch and yaw thing. ALSO..anyone know where i might find a diagram of the physics involved here...if I can get a grasp on the principles and what parts on the heli do what jobs..i might be able to solve future problems. thanks in advance from a serious NOOB. quattro