Last week I had a set (225/45/17) of these put on, the traction and handling are great compared to the stock RE-92s, however, the goodyear store doesn't seem to be able to get these tires balanced..Between 70-80mph the whole car seems to just vibrate me to death. I have had them balanced twice and am going back tomarrow for the third time. The vibration was not there before the tires were put on and the manager even told me that I would be back within 200 miles of the install. I really like the way these tires grip in the rain, they even did great in about 4-6 inches of snow, but the vibration is litterally making my teeth hurt. If they can not get it right then I may have to go with another tire which would suck.... Anyone else had a hard time getting these tires balanced?