Just wondering which tire is better? Anyone have any experience with either of them? I was speaking with a tire dealer and he said they do not stock the H4's so the installed (and shipped) price for them is $357.34. They do have the YK420's instock and those are originally $397 installed, but he said, because the H4 would have to be shipped, they would lower the price of the YK420's for me down to $365.94 installed. The H4's have a 45k mile warranty, and the YK420's have a 60k mile warranty. So which should I get? I'm leaning towards the 420's.. unless someone here tells me otherwise