...I do not make it a habit to draft semis. I have some CDL experience with busses and semi with a lowboy carrying 50t + dozers. It wasn't fun to know someone was riding my tail. Not really worried though, as lowboy trailers are very stout and with the load, 2 tons isn't going to hurt 75 tons very much. The guys that used to bother me were the kamikaze pilots that would come racing up the left lane, nail the brakes, and cut across the nose of the truck to make it into a rest area. 75 tons will go through 2 tons (most frequently, Honda Civics, so call it 1½ tons) like a hot knife through soft butter.