Preface: I have a TM Warthog w/CH pedals
After reading the sticky "How I flew a huey in arizona", I realized that playing with my curve/saturations, etc. was contaminating the "feel" of the helo. Furthermore, the regular pilot in that article stated that he doesn't use the trimmer at all (off). So, I have chosen not to use it either.
I went back into my settings and changed everything back to 0 curve, 100% saturation, and when I fly I've been keeping the trimmer off. Have to say...I love the "full feeling" of the helo, and actually can manage it quite well now. It might be mental, but I don't feel like I'm second-guessing inputs based on the trimmer and stick settings that might be incorrect.
Bottom-line: TRY IT!