Hmmm...when I look at the Now_Rot.x, its working sometimes, but often it switches to 300 and something (way to high) and has the wrong sign. But what are the other 2 values in the Now_Rot vector meaning ? Have they any sense ?

Ok always important to know:
-roll and pan are going from 0 to 180 then -180 to 0.
-Tilt is going from 0 to 90 to 0 to -90 to 0. (and it seems impossible to me to calculate the correct direction here)