Duane, when you say "measures to 5025 meters" do you mean as determined by an expanded constant (i.e. x 1.001)? If so then you would be stating that distance in the same way we state that a 5K course length is 5,000 meters. The unstated footnote is "I laid it out to be about 5030 meters but I'm confident that it is at least 5025 meters."
I could support that, or at least I see why it makes sense to give the runner that information-- an extra 25 meters is worth 6 seconds for a 20-minute 5K.
If such a statement is warranted could it just be a statement right on the map, like "Measured distance of course is 5025 meters"? (I don't think further explanation is a good idea, and I don't think we should be over-precise, as in saying "measured distance is 5.02487 km.")
That said, I kind of agree with Gene that more rules might not be desirable. Maybe as a guideline we could recommend that if a course is "over distance" by 2 SCPF's then such a statement should be given. So if we think a 5 km course is 5010 meters long or longer?