200# / min. ?? wow I doubt many American workers would do that kind of work these days!!
A local landscape supply yard added coal to his line this year, and it's been nice stuff, so I've been hauling my own coal this year so far. It takes me 15+ minutes to clean out my 1000# trailer, and then I'm ready for a break! Those boys back then were probably in a heckuva lot better shape than me!
As for Harman's "no wet coal", mine's almost always damp to the touch, but never had trouble. Is it just that wet coal hangs up and won't feed so good, or is there more?