the best advice i could give you is to see what most guys are running at your local track and what brand your local hobby shop is carrying.to have parts support is essential and running the same car as most at the local track save u trouble setup-wise.to me,any brands that makes it to the Worlds are good,be it Serpents,Xrays,Mugens,Capricorns,Shepherds,KMs or the new boys Hot Bodies/HPI.good luck choosing!