howdy folks, I have seen alot of people asking about running 8 cell packs in the slash, I have been running them for a few days and can say that they run fantastic, I am guessing around 35-40 mph speeds and seemingly endless run times (3800 packs). Also, I was having alot of body rub problems, easy fix for that though, simply raise the rear shock tower, it already has the holes for it and then on the front body mounts remove em and put 2 of the baffles or whatever the disc with the hole is called in shocks on there, they fit perfect and although you will need to have some longer screws to install, now my body rubs very minimally. Also I put 60 weight shock oil in the rear shocks as well and am much happier with my slash now.