This is precisely the issue, as far as I know, but I have had this tangential question tugging at me: The 737 already has an Elevator Feel and Centering Unit wh

This is precisely the issue, as far as I know, but I have had this tangential question tugging at me: The 737 already has an Elevator Feel and Centering Unit which "provides simulated aerodynamic forces using airspeed (from the elevator pitot system) and stabilizer position" [1]. I wonder why, if the issue is stick forces, this would not be the place to make a change. The answer is probably in the details of the system, but I also wonder if the reasoning was in part that, by changing the trim, the MCAS system is simultaneously and proactively reducing the possibility of a stall. [1] https://www.737ng.co.uk/B_NG-Flight_Controls.pdf https://www.737ng.co.uk/B_NG-Flight_Controls.pdf page 8.