I appreciate your reply. I plan to follow the article in the latest issue. This will produce wider tires. I also would like taller tires in the back because the "big and littles" effect adds "rake" to the body stance without having to add "risers" to the rear suspension. Tinkering with the rear suspension,when all four tires are the same size, just doesn't look right. Chuck Davenport creates tread on WW2 aircraft tires by pouring a little lacquer thinner on a metal file and then rolling the tire on the file a few times. Thanks again for your reply!