0-46-0 (triple super) has become much more available locally than it was even 5 yrs ago. Used to be dealers almost never carried it, or would only get trailer loads for you, and at a much higher price than DAP.

I don't know where you are in N Indiana, but there's lots of dealers stocking triple over here in NE IL now. If you want, you could email me and I'll give you some locations and phone numbers. It is also cheaper than DAP now. 

Times have definitely changed. We use mostly triple and potash now for fall "plowdown". If any spring spreading, then probably DAP for us.