touch wood i ent had a t brake yet, and with the new t's there better. i haven't got the x pro, i have the madrat, i have changed the turn buckles and added b4 shocks and carbon shock towers. also made up a rear pin holder out of alloy, the stock plastic ones break. and the stock tyres are naff, iv just duck taped the inside for the time being to reduce ballooning.
the diff holds up ok and haven't had a problem, the spurs are a bit egg shaped but still running it hasn't really had an effect.
theres not much u need to do to a pro, recommend an alloy rear pin holder and some some good tyres mini pins up front and rear if run on grass/astro.
im pleased with mine
