In the MFS24 Cabri G2 SDK Sample v1.0.0 flight_model.cfg:
[HELICOPTER]
...
; rotor_acceleration_fix = 0 ; boolean , set 1 to fix the rotor dynamics issue, default = 0
...
Very keen to learn what this is, but it looks like the sim doesn’t consume it right now. Is it for MFS20? Maybe vestigal.