I would like to thank calgoddard for clarifying my response regarding aspect ratio. I agree that my post relates to low ceiling gliders. And, of course, my mention of lightweight rubber classes like Limited Pennyplane was with regards to aspect ratio design analysis only. This does not mean that I was recommending copying the exact aspect ratio of a Pennyplane. And, Calgoddard is of course correct in stating that I was not recommending use of the pennyplane structure or rectangular wing planform. With a 3.0 gram minimum this year, the thin balsa wing is probably the best place to start. Although, for the very adventurous, take a look at composite foam core wing construction in the F1N glider thread on Hip Pocket Aero. I do believe that it is instructive to look at dissimilar classes with similar rule limitations to glean possible avenues of creative design. For instance, the most interesting and informative postings I have found on the web related to canard design are written by Don Stackhouse relating to large outdoor radio control gliders. I found a couple very interesting tidbits regarding dutch roll and foreplane volume ratio in Don's posts.
I agree with calgoddard too that the Feather Shooter is an excellent wing planform design. Other elements of the design like the method of creating the wing airfoil by reflex sanding undercamber and a wing highpoint thickness of 0.038" out of a 1/8" thick sheet might be quite challenging for a beginner. My favorite AMA design is the current national champion glider by Bill Gowen called the WIF7. Bill posted a plan for a simplified version of this glider that met the 2013 Science Olympiad rules on the Hip Pocket Aeronautics forum last year.
I do definitely believe that the event designers have created an excellent opportunity for creative solutions this year by adding a weight minimum of 3.0 grams. For low ceiling competition (less than about 50'), many modifications of AMA style designs should be considered, including: airfoil, planform, aspect ratio, etc. See Bill Gowen's AMA category II CLG national record holder plan also posted in the Hip Pocket Aeronautics forum. Have fun and keep building and testing and solve the canard design!