I don't know much about the history of the Mong.
It's faster, smaller, and lighter than the Pitts. But - it's not a good akro plane.
There aren't many of them flying these days.... We probably have two or three in the Bipe Class left.
I'd love to see pix of your FTB Model when you get a chance.
It'll be a while, I just have the vertical and horizontal stabs done then the whole thing was put away because I went on to other projects. I was afraid to get the plane done since it would be hard to ship when I leave here in a couple of years. It'll be years before I get it done.