Tested the new rims/tyres from Serpent yesterday and was pretty much impressed.
The shore rating of 40 seems somewhat harder than those from New Arrows (I always run a 40 from them), as the car was understeering and oversteering far more than I'm used to. However, a quick change in the rear springs from yellow to red and setting the rear anti-roll bar to its shortes setting brought back the amount of steering I like. Funnily enough, it also settled the rear end down quite a bit.

I couldn't push too hard, as my engine seemes to be playing up (don't think it likes the German Autumn), which caused me to roll once, as I was trying to get the car into second gear on the straight and then ended up going too fast into the left-right kinck

But this also showed that the strength of the new rims is also very good, as apart from a few scuff marks from the rolls, the rims remained true and the tyres didn't chunk.

The rims themselves are a good deal more rigid that the old ones and I though this may effect my camber setting, but at the rear, my usual 3L and 3.5R was AOK. At the front, I think I could actually reduce the camber a little as the fronts were a little coned.

I really like the rims - definately the best I've tried but I think a set of 37s would have been better for the track conditions yesterday.

Cheers, Mark.