Hey i have the factory team b4.1 and it is already built but just picked up a lrp x12 13.5,align ds 620 servo,gens ace 40c hardcase,and will most likely pick up another rs speedo but really want to know what type of gearing i should run. I have alot of different pinions and a few spurs but want it to be as cool as possible but want it to be the most efficient i could get it.I also want to know if you guys are using weights,if so where.any info would be nice.this is the track ill be running on.