Well, I have been crazy busy with work and the kids camps over summer. It appears to be a little less busy over the next couple of weeks. I am traveling this week for work, but should have some time in the evening to finalize my overall specs on the X-1 so I can start in on the plans. I brought along my handy dandy Andy Lennon book "Basics of R/C Model Aircraft Design - Practical Techniques for Building Better Models." A great resource for learning the nuts and bolts on airplane design. I would highly recommend this to others, if anything to have for reference. It covers: choosing airfoils, wing loading, CG location, basic proportions, aerobatic design, etc.
Andy has designed many models around the O.S. .46 SF to "try out" what he learned over time. He seems, in particular, to like models with slots and flaps. His book has been summarized in a way not to bore you with complex formulas, but rather simplified versions so you just plug and go.
Brian