Gene, thank you very much for the exact info I was looking for. We don't often get snow here but I have noticed traction issues with the OEM Hankooks on just rainy streets, so, am quite sure the Hankooks would be awful in snow. Have always had flat spots on the Hankooks that disappear after a mile or so; I guess a car as heavy as the K900 can cause that with any brand. Discount Tire gave me a bid of $920.00 total out the door which seems pretty reasonable so will likely do that this week or next.
Thanks again, happy holidays and keep the updates coming on the Genesis!