proline bullseyes all round every track! used to run m3 all round and it gives a very good feel,little on the twitchy side but thats how ya race a truck!
yellow mini spikes all round works well but if it gets to much then just put blues on the front,calms it down nicely!
or you could put a 5.5 motor in,that way the front wheels never touch the floor so it wont matter anyway!!