I ran around the 'ring on a set of newish borrowed PS2's and my Goodyear Asymmetrics (long story).. the levels of grip were, to a non-pro, virtually identical once warm & scrubbed. However you can tell the Goodyears have a softer compound due to that velcro ripping style noise that soft rubber makes... I think if I'd have really been giving it some on a warm day, the Asymmetrics would have had the edge. They'll get some more abuse next Sunday at Donny.
I've had PS's on my last 3 cars and usually swear by them, but the Asymmetrics came highly recommended, so took a punt. PS2's last say 30% longer, but then they're £35-40 more than the Goodyears. As long as you're getting the same miles-per-pound then it's just down to personal choice IMO... you just have to change them more often.
BTW - Seat/Skoda wheels tend to go cheaper than VW/Audi ones if you're looking for some OEM size/offset track rims. I picked up an 18" set of these for buttons and some R888s for next year's fun.
