Thx BB, good info to know.  Does that fellow have that Bogballe loader arm on his spreader?  How do you load in the field, or are all your acres around the main barn area?  Most of mine (plus my customers) are quite a ways away from the shop so transport and remote loading is required.

 I've heard everything from boom truck, extra tractor with loader dedicated to loading, and unhooking and using your own bucket to load.  I don't have a boom truck, and I don't like either of the other options from an efficiency standpoint.  Best one I've come up with so far is a second tractor with one of my existing smaller spreaders operating at the same time (fed with smaller hand-sized bags) and returning to the truck to load the big one whenever required.  3 men, two for tractors and one for the truck to return to the shop for more fertilizer.  Smaller tractor with pallet forks and a bag hook to unload some fertilizer so the tractors don't sit waiting for fertilizer after they empty the truck.  Either that or predrop fertilizer bags/pallets in the fields and hope that rain doesn't spoil it before it gets spread.  Wet/chunky fertilizer can ruin a fellow's whole day.