I own a Mayhem Pro and a XB
and I like it so much, I am selling my xray XB

:
the mayhem has better gears, initial suspension geometry, all around fits....as good as : shocks, materials, attention to details.....
it drives like the xb8, it's us, it's original, you don't have to master that much set-up features,
or if you like: with the xb8 you will be occupied changing the inserts , with the mayhem you will play more with the regular tuningaids like, different antiroll barrs or oils
but as the original conceptional setups are good , with the same results in the end but less work
all gears and outdrives are milled/hardened: solid
all steel, aluminium and also the plastic parts have a very nice finish and are sturdy, spare parts are cheap too
just check/change diff oils (5000/7500/1000-2000) , mine in the middle came almost empty (had probably leaked slowly because screws were not 100% tighted down as it should)
and shock oils (40/40) before driving
and see all metal to metal screws are all locktided
if you check regulary your buggy all over, there will be no problem
you have to do this anyway with any brand of car or after a few gallons they will fall apart and leave parts all over the track
440.00 is a very good price, my us based lhs asks 495.00/525.00 w.radio