Question about on-car spin balancing tires

["Hank Eskin" <heskin@xxxx>]

Hello all,

I've just received my four new Yoko's AVS Intermediates. I plan on taking
them and my D to a location that performs the "on car spin balancing" of the
wheels.

Question #1: Do the tires/wheels need to be separately spin balanced BEFORE
mounting on the car to be "on-car" balanced, or should they just mount the
tires on the wheels, mount the wheels on the car, and then spin balance them
on the car?

Question #2: They claim they can only "on-car" spin balance the front
wheels. Is this correct?

Thanks,

-Hank #1619