Goodyear tires

If I'm going to use Goodyear tires next year, I better start thinking about stocking up on them. Only two other F5000 cars are using Goodyear's, Eric in his 1969 Lola T190 and Steve in his 1969 Eagle. I talked to Eric after Road America and he said in had a slow leak in one of his tires and found that Goodyear had no tires for his car and he switch to Avon tires. Looks like Goodyear lost another customer.
The F5000 cars are racing in Portland in September. See if I can get some feedback from Eric on the Avon tires after the event.