Why didn't you have your airplane guys spray them cross-ways? Spray 1/2 the field in the middle. I'm assuming you don't farm, but I'd also assume that many of those x-ways test plot farmers would have yield monitors. It should show up....or let's say it has shown up for most others that I've heard of, having nothing to do w/chem/seed plot sponsorship. Side-by-side fungicide or any other treatment can often be influenced by some other phenominon unless it's treated across the entire field. Now with yield monitors, we can SEE the difference. However, most say no yield monitor is needed to see that difference. Granted it's hard to weigh the results, but if you have any confidence in the accuracy of the ym, you should be able to set the maps to show 5-10-15 bus breaks.

You're right, your profile is barren of identity.