RE: Monokote Hinges
gtmattz, I'm not familiar with a 2M sailplane. However, I use MonoKote hinges on my 1/8 scale - and very fast - Corsair as well as on my aerobatic Super Skybolt with no problems whatsoever. A felllow club member who flies pattern uses them exclusively on all of his high performance planes.
Installed correctly, MonoKote hinges will cover the void between the control surface and the wing and/or tail surfaces, providing better flight characteristics and a more crisp response to pilot inputs.
Unlike hidden hinges, MonoKote hinges are visible so you are able to inspect them. If you find a hinge weakening, replacing it with a fresh MonoKote hinge takes but a few minutes. I personally see this as the greatest advantage over any hidden hinge or any hinge that is permanently installed - and any hinge will eventually fail.
Mike