The Losi pistons gave me much less pack. I ran them back to back. My local track is extremely hard packed and rough indoor clay. My "go to" setup is ae 32.5 #2's in front and 27.5 #3 drilled 55 in rear. Car is always awesome jumping and landing.

I tried Losi 56 front and rear with 32.5/27.5. Car was super responsive and the shocks always feel great on the bench with Losi pistons but was bottoming out on everything slapping hard. Switched back to my old setup and it was fantastic again. I know the Losi pistons will work better on a smoother track.

The T4 is a diff story, I always run the Losi's!