Sorry for getting off topic, but I'm am continually amazed at what happens when guys who really love building get ahold of coroplast. As a scratchbuilding medium it's still rather new, and new ways to cut, bend, shape and form it are being thought up every day. Some of the planes on this page
http://www.spadtothebone.com/Showcase.html
are innovative but still pretty basic...but some of them are mind blowing. I will always hold guys who still work with balsa in very high regard, and respect them for being willing to do it (Heck...I did it for 20 years)...but my finances, building time, and flying activities (pushing my abilities and combat) don't get along with balsa very well. I also like designing and scratchbuilding airplanes. My planes are ready to fly the day I start building them...and if they are failures, I only lost a few hours in the shop and a few dollars...something else I could never do when I was building with balsa. It's great because I've learned a lot more about designing and aerodynamics in the last 5 years than the previous 20 years, and of my last 300 or so airplanes, I've only had a handful that didn't fly well.