Does anyone know yet what the new tire rule is going to be for the UMP Modifieds?? If production has stopped with the A40S and production has picked back up for the A40, what tire are the tracks going to allow? I am sure there are a lot of A40S's in circulation already so are guys going to be able to run the A40S, A40, and/or the H40?? Does the A40S out perform the A40 on a short term basis?? Hoosier and UMP have caused quite a ruckus with this new tire deal.