Who has a camper with a slide on single wheel truck

I had a Lance 500 plus pulling a trailer on my F250 for a while - after adding 19.5's, found that I could do 65 all day, and still have cool to the touch tires. Also reduced the wierdness of the track, felt like it was on rails at times. Grooved pavement and ruts was the only bad thing about it - grooves cause the front to wander some, and ruts was hard to get out of.

Picked up a new Host Mammoth last month, and it's bigger than the Lance, but still lighter than the old Camper/Trailer combo.