Spotting and unit quality - does it matter?

[The Coil]

Not exactly what you asked for, but I tried it with platoons approaching through scattered trees - same result - the spotting distance goes down considerably, but units are spotted at the exact same time/place every time, regardless of unit quality. That's what makes me think there's no difference - the fact the units show up in exactly the same place each time. It's possible that there's some difference that applies only in certain situations - i.e. spotting units in particularly good cover or something, but that seems a little too subtle.

My experience with CM is that stuff is generally modelled more simply that I think, but the complexity of the game lends itself to identifying all sorts of subtleties of modelling that just don't exist (like for instance, all the theories of the best way to un-immobilize vehicles, when in fact, it seems like the de-immob as a result of a random die roll). Haven't tested it enough, but I strongly suspect the unit quality - spotting thing is another such thing. Might run a few more tests to make sure. Haven't tested the flip side at all, either: does unit quality matter in remaining concealed - that is, is an elite unit harder to spot?