Hey Derek, maybe we can use that 60 fps limit to advantage. The FSX Thunderbirds guys told me that they set the frame rate limit to 30 fps to get rid of the jitters. In VR I think we want higher, but if you can limit to 60, that may do the same thing.
I was flying copters with Sharkku yesterday and my frames were right around 60 as we were flying and no jitters at all. His copter was rock steady.
I don't know for sure that was the cause, but I usually have jitters with other aircraft. Maybe something to experiment. And glad you like FSUIPC. Edit: the radio knobs actually do work in P3D. I wasn't properly selecting the radio on the mfd panel. Once I did it worked great. And I was able to tune to the .000 position. The increment just changes. Also, I used the increment/decrement with carry/borrow. Just my preference. You don't have to use carry/borrow and the two knobs for whole/fractions don't need to interact. But if you are short of knobs...