mattebox: your Discus should be very good model. But when the scale glider is so small in wingspan, there are some details omitted, like for instance polyhedrial wingtips (if they were scale, the aileron would have to be in two parts). Go for it and have fun - but they say "bigger is better" and this is true for gliding, soaring and thermalling also!

brancolitw: yes, sometimes it's tricky to cover the undercambered wings so that have your camber when you cover them. By the way - I noticed something that I didn't notice on the full-scale Discus: the airbrakes are not parallel to the leading or trailing edge of the wing, but tilted slightly backwards for two or maybe three degrees. Is this the case with your Discus also (this is not the case on smaller version)?

Sašo