right at last im coming to your lovely track.first time raceing buggys so plz be gentle with me

i got a losi xx with 9t ezrun.
my setup is..
88 spur and 23 pinon
30wt in front and 35wt in rear
is there anything else i need to know before i race?
or should i run the madrat with the 9t in
cheers Ginge