I'm flying a stock Blade CP with the original radio. I have recently replaced the main shaft and the spline, blades are balanced and tracking perfectly, servo movement looks good. But since I have changed those parts instead of lifting of the ground she'll just tilt off to the right side. After the first time it did this I put some left trim in (not a lot), spun the blades up and she tilted to the left side! I have checked the servo movement with the motor disconnected and I'm getting the proper pitch and paddle movement.

Any suggestions?

Thanks