I'll check the slipper for sure. But i stiffened the suspension by going up to 45w oil. no change to pistons or springs because i liked the rebound and dampening. That helped a lot as the track is quite beat up, pot holes everywhere. even my lil brother has problems in his stadium truck cause there are so many deep pot holes. So i don't think i want to soften it back up. Do you think the goosebumps and slipper adj. will be enough?