Sweep 40's and 45's were the tire of choice for the Airtronics grand prix this past weekend. A bad plug took me out while running 3rd, but what a great time. Congrats to Sweep driver Andy Liu for the win on Sweeps. The 40 exp tire had me very hooked up in the main. Can't wait to get the nitro season started here . It was snowing when I got back from L.A. Yuck.