RE: inverted engines
I should expand on my earlier post. I didn't mention that my first inverted setup was my second airplane, and when I built it, I'd only been flying 6 months. So maybe it doesn't take one from beginner to intermediate by itself, but added to all the other things that are the more challenging way to do something, I may have got there a little quicker. I'm all for easy, don't get me wrong; easy is good, but it ain't always the best.
Tim, don't worry about how your Cub looks; have you noticed that most every full-size Cub you've ever seen show their age, too?