TRP? Zero, default. I thought the P and I terms aren't used in the tilt rate controller.
The main thing I had to do was reduce Tilt rate D to 5100 (from 7180), otherwise it was very "squirrel-y" trying to hold altitude (lots of sudden alt. changes in manual mode). The quad does have some vibrations, a touch more than I'd like, but nothing nasty.
I then also reduced Nav. Alt. Speed I to 1.8 (from 2.8) to eliminate some slight "bouncing" effect during alt. hold (motors would rev up and down a bunch, with some vertical movement of the quad).
All this after adjusting throttle factor, of course. That's pretty much all I had to do. My radio is set to around +/-700 on Roll/Pitch/Yaw axes (as displayed in QGC).
-Max