Alrighty, then; welcome back to the thread that is in first place for the longest ever to complete a Wildhare ship; Author's disclaimer: my slothfulness should not be construed in any way against Wildhare or its affiliates -- any inability to stay on task is purely my own!
On the bright side, over the last week I had a great time seeing Mom and 3 brothers again in California...first time we have all been together since my Dad passed away in 2002.
Anyway, back to building...I've been wondering how to get the aileron drilled reliably, so that the hole for the control horn is perpendicular to the wing. Then it hit me - use the incidendence meter to provide a guide! The way the Robart sets up, it will identify the line through the center of the wing - all I have to do is to stay relatively parallel to the edge of the incidence meter body!
Oh yah, use a clamp to hold the aileron in line with the rest of the wing.
I elected to drill by hand using the extension that I had on hand (that I also used to drill the wing strut tabs). The extension acted like a big pin drill - no problem at all.
I also used a speed square the first time...I did not use it on subsequent efforts as the incidence meter was good enough as a reference in both axes.
After drilling the holes for the Robart heavy duty control horns, I strengthened the holes with CA.