Durnago DEX210 gear diff advantages?

[danny the elfman]

Hey guys. Im running a gear diff in my DEX210 and to be honest its a PITA. Every time I need to change it i have to dismantle the car its leeks a little anyway. So im racing on carpet at the moment and want to ask is the gear diff a real advantage over a well set ball diff? How much difference does it make? Ive never tried the ball diff in this car, is it worth ith? Thanks for reading