> ( real hardcore types by 6 new tires and rotate 6 on a regular basis, so
> if they loose one to a rock or whatever..
> they still have an identical-size spare. )

Something to keep in mind, if your tires are not worn too much.
Some tire shops, those that work with racers and (around here++)
those that sell to Subaru owners, can shave a new tire down
to match the others.

Richard
Boulder

++Tire Source