FWIW……I had a random intermittent steering wheel vibraton on my VW Touareg TDI when it was new. It wasn’t always there, but when it was, it made my expensive car feel like crap. We rebalanced tires multiple times and even put on a new set of the stock OEM Pirellis, wouldn’t go away. At 22k miles, I put on some high performance Michelins, and it drove like butter. I never had another problem with steering vibration again on that vehicle. Morale of the story is that tires can be bad from new, especially the larger sizes. So far, I haven’t had any problems with the Generals on my Tremor.