Bandit,
Yep, most of us are using silvercan, just to keep it simple, fair and affordable. In the future though, it would be nice to see an outlaw class (with some realistic limitations of course) at some point.
With regards to tires, as I mentioned previously, it has a LOT to do with driving style and the car's setup. Obviously you have managed to get yours to a decent level of ride stability.
I am not sure where you have raced before, but bear in mind we are parking lot racers and as such the 'track' is not the kind of surface you get much grip on....
I am a keen advocate of putting down some 'traction compund' (a.k.a coca-cola) to ad some grip in the corners, but I fear that as it is a municipal area, some govt. official will get his tits in a tangle and throw us out of our new venue.
Let's all share setup tips and tricks to try and get the best out of our mini's and HAVE FUN!!