I have a question. Why would you rebalance each time you swap sides? If the tire is balanced on the car "spin balance" I could understand it. If the tire is bubble balanced I think it would be OK just to swap sides without rebalancing. The warm up lap cleans up the tire and the balance should be OK unless it is flat spotted. Do others rebalance each time they rotate their tires? If you have your own balancer no problem. If you are paying someone it could get expensive. Is it money well spent? Just asking.