Back when I rode the Outdoor National circuit in 1984, I remember seeing Jeff Ward's factory Kawasaki mechanic take his gas tank out of a cooler full of ice and install it on the starting line right before taking off. So there must be something to "cooler is better". Not sure. BTW, did anyone else watch the Freestone National Race on Speed this week? Notice that Cody Cooper's mechanic poured something from a thermos into his gas tank on the starting line. Wonder what that was?????