Hi Frank,
I've seen a flying stop sign before, don't know if it's quite the same as yours or not. Gets some attention I bet!
The Queen Bee is a tiny little profile biplane, 11" span, for the PeeWee .020. I bought a pair of .020s through the classifieds, here or SSW and one of them is pretty good so I guess I came out OK on the deal. I'll post a pic as soon as it's done. And no, I'm not gonna kit it!
Re: the Black Widow, I have a couple but they're older and though they run OK neither one is a barnburner. Maybe some mix-n-match would work. Did you know the production Coxes have double-bypass sleeves? I may try one of those on the BW, now that I think about it, don't know if the port timing is different. And I've often wanted to drill out the venturi on one as big as it would go and run it on bladder pressure just to see...
Now see what you've done! Just what I need, another project.
--Ray