I had 20% curve on the pitch axis as I had similar problems as the OP, without VR
I also added a curve to the rudder pedals for the same reasons as bongodriver. I have also reinstalled the spring in my warthog stick and this has made a huge difference to the flying of it, so much so that I will be removing the pitch curve. Lord only knows how my chopper flying will suffer having a sprung joystick again:joystick: