I'd love to see some pics showing the setup of the servo to the ailerons.

I have a SS as well, and love it. Installed a 9.6v battery and a 12 prop. I can almost hover!

Are these structurally sturdy? I've been afraid to get too much airspeed, or do any hard maneuvers for fear of folding the thing up. I did this with a tiger moth once, and helplessly watched it spiral into the ground with folded wings. These do look more sturdy though, with the fiberglass rods in the front and back.

What do you think about the structural integrity?

Can you barrel-roll with the ailerons?