I am switching brands due to contingency....these are awesome tires and I placed 3rd at the SCCA Solo National Championships on these tires last fall. For stock set up.
Bought just before Nats - not shaved - stored indoors in bags all Winter, never even got cold! 2 or 3 small events plus a couple hundred street miles on these - plenty of tread left. (Will measure/get pictures up later)