Here is my understanding: With dynamic balancing the tire and wheel are left on the car and not removed. Machine then spins the wheel and thus creates a more perfect balance. And if tire is not perfectly round it can be shaved. BUT to do this the wheel must be perfectly centered on the hub. Such a tire is called "hub centric." Hub centric are by far the best. My wheels are "lug centric" as they are aligned on the hub by tightening the lugs. To make them hub centric I need these spacers that fit the wheel tightly on the hub. Haven't been able to find any for the Morgan, although there are many for other cars.
Yes, located in Florida; guess you can tell.
