I still don't understand what you're trying to express.

If you're flying full scale you're not staying over 500 foot baro you're flying over 500 feet AGL.

I don't fly C/L but I don't think you're flying that far over your head. So unless you're next to a heliport or on the approach or departure end of a runway, I don't see 80 feet over your head as an issue.

Edit: I'm not being snide, I'm truly trying to understand what the issue is.