Very good! Liked your high-lift page, and the reference to Andy Lennon.

Your "double-slotted" flaps are similar to those used on the deHavilland Otter and Buffalo. Martin Rousseau has some drawings of these flaps at his site:
http://www.mraerodesign.com/buffalo/BUFFALO.HTML

I have a Bruce Tharpe Flyin' King that I'm doing STOL work with. I have an extra wing that has fixed LE slots, slotted flaps, hoerner wingtips, and other low-speed enhancements. This is in-the-works, I have the wing basically framed up but not completed.

Eric Kler has an STOL page at his FUBAR site: http://www.fubarhill.com/ .

I'll be following your project with interest.