Since I started this thread, there has been a LOT of creative, interesting, and challenging posts. Just goes to show the diversity of our interests, and the number of variations on a theme that are possible.

It was a good ride! The Excelleron proved itself to be a capable pattern airplane, and properly powered (to the OWNER'S preferences), it IS a great airplane. Considering it's price, it is also a great VALUE.

If I were doing another, what would I do?

There is NO DOUBT in my mind I would do the OS 91 FX on a long-ish pipe, and turn a smaller three blade setup to manage energy better.

Mine has moved down the road, hope the new buyer is happy with it, overpowered and all.
Enjoy your Excellerons, men!!!