JDM noobie

I've been looking for the right 3wd shaft myself. I tried illima 70s and it wasn't launching high enough and always have that fade at the end of the ball flight. Since I have a spare illima 60r, I gave it a try. It's way too spinny, on trackman it's around 4200rpm. Ball kinda climb rapidly then fall with very little roll. Now I'm trying diamana thump f65R, ball flight is much better. Definitely way less spinny then illima (3600 rpm ish), but still haven't decided yet wether I want to tip it 0.5" or butt cut. My driver SS is in the low 90 mph