Mike,
I have the HSR-2's and Love them so far, much better ride than my old tires and a higher class rating. I was lucky that a friend could get them for me at a discounted price through his business. If you shop around you may also be able to find them discounted, it saved me a lot. They also hold air exceptionally well. I can go a couple of months without moving the coach and still not need to add any air. My old tires not so much.