I used to do a bit of touring in Southeast MO, and the logging trucks were awful. They typically were truck that had been beat to crap, and not reall maintained to much of a level. I guess its really hard for small logging companys to make a buck. Anyway, you could hear them a'comming from a long way away. They would basically floor it comming down hills then try to hang on to get over the next hill. going uphill ypu basically had to be aware enough to get the hell outta their way, 'cause they were not slowng down for nothing, as if they did slow I am not sure they would have made it up the next hill. The real trick was to be aware of any traffic in the oncomming lane. If there were cars over there, head for the grass. If not they would swing out and give you plenty of room. Wow, I am practically shaking just remembering.