I don't really understand any of that, UNLESS, that is, your "Yaw" mode is a mistaken name for "Slew" mode? If so, then, yes, you are correct. FSUIPC does not touch slew mode at all.
I have always found slew mode almost uncontrolable with axes. You are far better off leaving the axes parked and using the keyboard in slew mode.
Again, assuming you are meaning slew mode, then you can only do this with FS's own calibration. Just reduce the sensitivity for the slew axes and increase the null zone. Alternately, set the sensitivity to zero and program some buttons for slew keypresses or controls. (Using recent FSUIPC additions for offset conditionals, you could actually make those buttons dual purpose, only performing this slew function if slew more is operative).
Regards,
Pete
Thanks Pete. Yes, I did mean slew mode - must have been brain failure or something. I'll try your suggestions... if I use FS's own calibration for the slew axes though, will I mess up the normal settings that I have in place with FSUIPC?