I am going to try a set of P7 Corsas at some point and will report the results.
I may also do the same with the Michelin MXW also.
I wish Yokohama would reproduce the 285.
In the meantime, the Michelin TBs and the Avon slicks (with grooves cut) are the instant, "turn-key" options that will produce high performance on the street.
I am hoping for more than just those two options.