Will, thanks for the encouragement, this is where I am now with servo mounts and struts. The outside of each wing will have fences that will insert into each wing panel and protrude through to the other side of the wing. The tab that protrudes will serve as both the servo mount and strut mount. From a front view the strut will have an hourglass shape to fully cover the servos. The plug has started, I just finished gluing some 1/8" balsa sheets together and will start cutting tomorrow.