Thanks for the update on the current street tires. About what I thought. I drive the A032s now on the street and have done some track (road coarse) on them. They are darty - this is always the case with R compound. I agree about the traction. I have Toyo RA-1s on the Miata and they crank, but Toyo's are not discounted. I may buy the Enkie's with the A032s again to get the package discount from DTD and then go Toyo next time.

As far as the 16" wheels and tires - I completely agree! I used to run a second generation RX-7 in CSP with 13x9 wheels and I use to place at national events. From 15" to the 13", I dropped my overall rotational inertia of the drivetrain by 70%. There are some choices for tires in 16" which is about the only even sized tires available. BSP is a tough class, street prepared gets very strange at the top levels. Car prep can go beyond prepared class at national the level. Good luck.