Operating margins for shuttle loaders have been exceptionally good in recent years because of good crops and strong demand, but are now becoming more compressed as additional facilities come on line and the competition for volume again starts to heat up.CoBank recently published a very good article on how the number of grain shuttle loading facilities has reached the saturation point, and I couldn't agree more. I started in the grain business back in the mid-70s when single car rail shipments were still the norm for most of the U.S. The exceptions were the big trains that moved from Illinois directly to the Louisiana Gulf. U.S. railroads were still regulated at that time. Deregulation came with the Staggers Act in 1980, which led to unbelie...