RE: The Great Glow Plug Run Off!
That is a lot of work and data, I thank you for your effort. I will add that the Galbreath/Nelson setup is so far the best replacement for power. I would add to what you have shown , be aware that using just one or two gaskets will impact the life of the crankcase assembly. It will up to the users to find a balance of power and performance, over higher wear of the crankcase. The gaskets (at three or four) brings the entire assembly into a good running engine, and keeps the engne's stress down for longest life.
Replacing a Tee Dee with another is only going to get harder as the years go by, it is up to the user to find a balance on power vs wear.
I find your four gaskets gets close to a stock Cox H.C. head compression. Thats great for sporty fun flying.
Thanks again for your efforts!