In a thread about adding an adjustable leadout to a Sig Banshee that Randy gave me (thank you, Randy), he said:

Tim,

Somehow, I know you wouldn't just fly it. It was covered in silkspan, but it was very old silkspan at this point and pretty fragile. You could cut the pushrod and add flaps, too as long as you're at it. It was built without flaps because I envisioned that he may get splatted a lot and it would be easier to rebuild without flaps, but we know that won't happen with you. Same reason the fuse is so heavy and reinforced.

When I read this, I thought to myself (in a very polite tone in my head, because my mother taught me to always be polite) "yes, Randy, when pigs fly."  It wasn't that I didn't think that the idea of putting flaps on the thing wasn't a very good one, it was the thought of all the work necessary to hack up the plane, cut the control system, make everything fit in tight quarters, make it all pretty when I was done, etc.

I looked at the plane several times since then, thinking about Randy's suggestion, but each time it ended in "nah, I ain't gonna do that much work!!"

Then I crashed the Kiss that Steve Helmick gave me (thank you Steve, and sorry for not taking better care of it).  Looking at the Banshee again, this idea came to me all at once, in a flash.  And, here it is.  I'm sure this has been done before.

Given the way everything is fitting up, I may use it again on a scratch build, because it sure does make things fit well.  The way Randy has the control rod it fits very close to the fuselage, and the flap linkage actually goes over the flap while still leaving plenty of deflection -- so you don't have to whack big notches in the control-side flap.  It'd never work well on the old metal-pushrod style of control system because of the bending moment that it puts on the main control rod, but with the super-stiff carbon fiber rods that we use these days I don't think it's going to add any significant deflection at all.