Paul,
Congrats on self taught CAD skills, I tried and failed, it was more that I could figure out during my airline trip hotel layovers. I had a chance to fly with the RAF Buccaneers in the first F-16 Maple Flag exercise in Cold Lake, CA. It was 1981 I think. Those guys flew lower than I had ever seen. I mean they were low! They were a great bunch of guys.
Gary