SX2 v loose dirt tracks

[thorns_nz]

Can anyone offer any opinions on how the SX2 would handle a loose, bumpy, 1/8th scale track? My local track here where we race is the 1/8th nitro track with some pretty decent jumps and a very loose surface. Is the belt drive system just asking for trouble on a dusty surface like this?

Also, with the two chassis options, does one offer more grip and could be better for a track like mentioned above, or is it solely just weight reduction and strength?

Heres a video of the track with some nitros running it, so can give you an idea of what I am talking about........

http://www.youtube.com/watch?v=64CgIgEUWJs