Road trip and two blow outs on Goodyear Marathons

Our Casita came from the factory with 14" C rated Marathons. A lot of Casita owners complained of problems so we put 14" Kuhmo Cs on it. When we went with 15" wheels we couldn't find any Kuhmos so went with Maxxis Ds, but one of them shredded a couple of months ago. Now I've taken a chance on Discount Tires' purpose-built Homeland 15" D tires. The Kuhmos are the only ones I really trust, though. We had them on all of our motor vehicles until I put Mickey Thompsons on the Wrangler.

LS