"Thanks for the quick answers.
@Chris: May be 'reassamble' sounds exzessiv. But in may case there is not enough place to rotate the IMU. My mounting plate is to small to rotate the IMU. The plate is not round it is rectangularly.
Yes, this is also my question. Is it possible with the current NG code to flight in X-mode while the IMU points between the front motors?
I think most of the existing x-configured Quads are build with the IMU between the motors (with the…"