has anybod been told by their service rep that the 17 inch wheels are very sensitive and hard to balance. he told me that the shake i have between 45 and 60 was normal because the wheels are very sensitive to irregularities that may be in the tire.
That is total BS. Performance tires (especially 17")are made for high speed stability, that is unless you went half ass on the tires. What kind of tires you buy? Discount Tire(American Tire) now has a new balancer that cost $5-10 more per tire. They mount the rim and tire, the machine senses the dead spot on the rims and senses the dead spot on the tire, they remove the tire and align the dead spots together for a more precise balance. The weights are different also and are placed along other dead spots. The process is 2-3 times longer then a regular balance and was a pain in the ass to do all mines. But well worth the piece of mind IMO.