When you said there were no trim forces I assumed your stick couldn't produce them. I didn't know you just never turned them on. I haven't tried the porked firmware in 3 years but I recall the trim forces not being the noticeable. If yours works there's half your wish granted!
If you have a slider called "buffet" that adjusts high speed buffet, and a slider called "stall" that adjusts stall buffet, and you replace them with a slider called "high speed buffet" that adjusts high speed buffet , and a slider called "stall buffet" that adjusts stall buffet, then you really haven't removed and added sliders, you've just renamed the sliders you already had.
The vibration concurrent with the stall horn was part of the "stall" slider that also adjusted the stall buffet. It was removed at the time the sliders were renamed. This is a matter of record not opinion.