There tends usually to be more 2wd than 4wd although obviously it can vary from week to week.
I think that you will be really struggling if you try running yellows at the moment, I would say greens are a minimum and preferably silvers. Even when it hasnt rained for a few days, the track is just permanently cold, slimy and slippy.
I should know coz I keep falling on my ass when marshalling!
