Well, I was way off on the price of the Hay Defender. It is $2.40/ton.
It contains no acid so not hard on machinery.
If you apply it with the swather, the applicator is only about $400--you
can use the same type as you use on a 4 wheeler. Applying it with the
swather seems to be the popular way to go around here. Even the ones
that first applied it with the baler have now gone to the swather as they
see more benefit.