Forgive me here for may seem to be a pretty dumb question:

When you change wheels (with tires on) from another person's S to yours, do any of you re-balance?

Technically speaking, the tires are balanced to the WHEEL, NOT the car, correct?Therefore, even if putting somebody else's wheels/ tires (with different size rims/tires from what you HAD on) on YOUR car (assuming both cars are the same type), re-balancing would be a waste of time and money?

Or is it more a matter of personal preference?

Interested to hear from those that say you SHOULD re-baance, and WHY??

Thanks,
HB