My 35" Boggers are done. I think they're just plain old (about 6 years) and not as pliable as they used to be. I've split a couple open in Box Canyon and Martinez Canyon on the same day. I only brought two spares, so I got real scared. The Michelin mxl's are cheap and big. Does anyone know if they drive ok? My trucks not a trailer queen. Can you get a fair amount of miles out of them? Mainly, are they tough enough? I'm lookin at something around the 13w x 38h x (16" or 17" or 18" or 19" or 20") range. I thank you in advance for any feedback you can give me.