man vallon I'm so new it's hard for me to help trouble shoot... so if I understand you right you could pirouette to say the left but not right? sounds like a linkage problem... check the control rod for binding... if it was fine one min and not the next I would say you have a mechanical problem like some binding going on. your blades my very well be out of balance BUT that would not keep the tail from spinning one direction and not the other... if it's wagging then it could be balance, tuning or gyro gain/servo speed. on thing I've found is going over ALL the screws after each flying session helps keep things tight... if you have a screw that uses loc-tight loosen up remove it clean it and reapply the loc-tight. I'll tell ya PM'ing my heli after each trip out has saved me... not only finding loose screws... I found my tank stopper had loosened a bit, closer inspection showed an air leak if I wiggled the pickup line... pulled the stopper and had the pick up line fall apart in my hand!! it had cracked in the stopper... no way am I ready for a forced auto had I not been checking over my heli after each trip I'm sure it would have balled up by now.

John