If you buy quality stuff, i guess there won't be any problem..
A good wheel with a quality tire on it should be in balance without any balance weigths on it
They must have special wheels and tires next to the dikes.
I've seen HREs with premium tires and particularly for dynamic balancing weights are always required. The smaller the tire/wheel combo the less weight that is usually required, though. When I had my little Datsun with stock 13" steel wheels and el cheapo tires from Discount Tire (4 FOR $88!! COME IN NOW!!) three of them needed no weights, the other had two 1/2 oz. weights about three inches apart.
JoeVal, I'm with the first responder. I've never known a performance shop that would do that. You might find one that will let you observe
some aspects of the process, but most won't even let you in the room while they're balancing the tires. That said, good performance shops will also make proper recommendations to appease their customers, so if you give them specific targets and goals, that should work. Also, a good tire pro will always seek to balance the heavy spot in the tire with the light spot on the wheel to achieve the best raw balance possible. I'd suggest going in and talking with a few of them, get a feel for the place, see how they're handling cars and equipment, how open they are to pointed questions, meeting specific requirements, what brands they sell and recommend, etc. If you have a good BS meter I'm sure you'll find one you'll feel comfortable with.
No one has yet asked, so I must: What is your dream car? What do you plan on doing to it?
Take care and enjoy the ride,