Well not content with just lighting up the plywood components I also trimmed out the balsa ribs the same way. The end result was I lost another .6 oz total weight savings thus far is now 2.1 oz, 1/8 of a pound reduction thus far. With all of the modifications I plan on the plane, and the fact want to keep the weight as close to the original spec as possible, trimming weight wherever possible is a must.
One of modifications, adding flaps, has two consequences. The first is the added weight of the second servo, and the other is having to relocating the control horn on the aileron closer to the center of the aileron. To center the control horn on the aileron this requires moving it outboard. With that new horn location that also calls for the servo location to move more outboard as well. The result of that is more weight toward the wingtip, which will in turn drastically reduce roll response due to the mass of the servo and force needed to overcome the rules of inertia that come into play. The airplane is a good design and this would clearly degrade it’s performance, not what I really want to do. So if I want to keep the performance of the plane and add the option of flaps I will have to come up with a method of moving the aileron without adding the mass of the servo outboard. Torque rods are out of the question. I could use a bell crank type of setup, but that would add a lot of weight. The solution I came up with is, mount the servos inboard and use pull-pull for the aileron control link to the servo. The components needed for a pull-pull setup are light weight, and I have the added benefit of moving the servo location well inboard from the original location. Cool, this will move more of the major mass closer to the roll axis, that is an improvement.