Yeah, we just started field tests about a year ago. It's tough to (1) get the manufacturers to ship products and (2) to get qualified folks to do field tests. I have one thread on lawnsite right now trying to find someone who will test a ride-on sprayer in Indiana for Rich Mfg. I'll go see if it's getting any action. Meanwhile Jim, if you see me posting for a field test which is appropriate for your operation, please chime on in. Could be fun!