Good point on the ethics. That would be a stipulation, if we did have a written policy regarding soliciting measurements. I would never bash another's work. Each person has their mapping methods, but we all follow the same process to measure the course. In the measurement respect, if the course is accepted by the Certifier, all measurements should be of equal quality.
I agree with encouraging races to measure for themselves, and just got a new person in Pueblo to begin by measuring his own course. He will now measure other courses in Pueblo, for other people. It began when he called to have me come down to measure his 5k.
By the way, there were two young men from Columbus at the Buffalo workshop. I will follow-up with them, and see if they will be shifting some of the work off of your bike seat.