Toyo Proxes R888

Has anyone tried these for track use? I'm considering them due to the optimal sizing for my wheels, and wonder if they're as good a tire as the RA-1 in durability and traction.
Any experience with these? Any idea of the cost difference (+ or -) vs. the RA-1? Just curious.
thanks in advance.
Oh yeah ... Hey "Lucky Dan," how are those new tires of yours?
Any experience with these? Any idea of the cost difference (+ or -) vs. the RA-1? Just curious.
thanks in advance.
Oh yeah ... Hey "Lucky Dan," how are those new tires of yours?
