Only the 146-300 has a flap trim compensator, it is electric. The smaller 146s have no FTC. Unless a 146 pilot has only been exposed to the 300 series they would be familiar with the trim changes required with the first stage of flap and would do it automatically. I agree that an RJ pilot with no 146-100/200 experience would get a rude shock when extending or retracting the flaps if the FTC was not working.