For those sort of tracks rear all day long mate. That is the reason you won't see any of the "big global manufactures" (like kyosho, Tamiya, Associated etc.) making a mid motored 2wd any time soon. Those are the bread-and-butter tracks in the major markets (USA, Japan etc.) so that is what the cars are designed for.
In this part of the world (UK / northern Europe) where we race on surfaces like grass and astroturf the dynamics are different and normally the mid motor cars often have the upper hand for a given driver level .... why I have been doing a rain dance before every 2wd meeting this year (but probably not next)
