Were you happy with that yield gain? Seems 40 extra units of N (if you figure in what they claim) should have resulted in more than a 3 bu increase. Idk for sure what it cost and would be interested to know if you don't mind sharing per acre to see what the ROI was. It might be one of those things were a person wont necessarily see a 2:1 ROI. I've been trying to find someone that has ran say 140-160 units of N + pivot vs 200 lbs N standard practices.