Ran 3 packs before work today. Moving the weight forward and to the bottom of the chassis improved on power steering and jumping (5k diff fluid fr and rear) Didn't like the hub extensions. Tried raising the inside ball stud but ended up back with no extension inner most position for both ball studs. The rear end just didn't seem planted. Changed the rear shock oil to 25wt. It seems to worker even better with the heaver springs. Can't race until the 18th lots more practice with NO cheese until then. Maybe the diff upgrade will be available before then???????