Funny I didn't notice it in person, but it seems Kaz doesn't believe in doubling up hinges at the flap tips, nor in a lot of elevator hinges... Though I must admit that these days, I also feel need for less hinges if the surfaces are taped correctly... but only 2 elevator hinges? My mentor is out there cringing somewhere. Heh.

Kidding aside, it obviously works, and works well for Kaz. Probably shaves a few grams of tail weight off too.
Awesome airplane. I have some pic's I took at the Nats to add. Some from the 180 building before and after the rows were sorted, as you can see it stayed near the front row... and pics from the work session on his head.
I can't tell from the pic, but I wonder if it may be a magnesium head, judging from the unusual head color? Totally a guess, maybe Kaz anodized it to blend in better for all I know...Howards pic appears to show a shiny, normal looking head going back on. I'm guessing Randy Smith could fill in the details.
EricV