At Gingerman, Ralph Provitz (SMAC member) and I had several discussions about tires. Including one with Hoosier tires.
My take on the discussions is that Ralph and I agree that the current tire is too sticky and too big. Going to a smaller, less sticky tire will save parts such as wheel bearings, wheel hubs, axle shafts, transmissions, subframes and clutches. We also feel that a change in tires would spread the field. Having less grip will effect the midpack drivers more than the front runners. Psychologicaly this may help with the crash damage. As the 10th place driver will be 1.5 seconds off the pace as opposed to 1.5 tenths.
Ralph had a longer conversation with Hoosier than I did, but I came away with Hoosier agreeing with our thoughts. And being willing to adjust the spec tire. Bruce from Hoosier thought that the current contract was through the 2018 season. Maybe Ralph can post his thoughts and corrections if I am mis-speaking.
I would expect a "what do you think" coming from SCCA in the near future.
Dave