Well the thing is that the Schwalbe Tracer is designed precisely for trailers so SHOULD be the best bet. Yeah I could always go with their 20" Marathon GG but those things are pretty heavy and probably overkill for a trailer.

Kendas that came with my Burly wore out so quick that I wasn't prepared. Switched to Maxxis Hookworm and those have lasted so long, actually pried them off my first Nomad and mounted to my second, didn't bother with the new Kendas at all because of their high susceptibility to flats. Now that Nomad has also bit the dust and the Hookworms are still good but weigh a ton, and of course the 20" size to fit the Quik-Pac would be even heavier. So I'll wait to find out what tires come with it and if they seem below par will take a chance on the Tracers (still don't see any reviews.) At least they have some kind of Kevlar belt, so should get me home okay for a while.