going way up in the center diff would make the truggy not pivot as you tried to turn. kinda like a dump truck. if you bash just put in the thickest fluid you have. then buy another diff on ebay and set it up for racing. best of both worlds.
if you are racing why would you want all the power to unload to the front too? i Mean i know so so it dosent wheelie but i cant belive all of it. Was is a good number that i can bash with / wheelie but still be able to race.