First, I'm very sorry for the loss of your plane Davros....but I do not agree this plane is flawed in it's design. I flew mine without any problems, and so have most other people. The flutter problems are in the minority of planes flying and should not be blown out of proportion. This is not to say there isn't a problem, I think there is, not with the design, but with the recommended setup. The first thing I think is wrong is the recommended servo size and type. I believe a servo of 130 in oz should be fine, but it should be a metal-geared servo, though I would recommend going with a 150 in oz or greater(JR 8411, Hitec 5945, etc). I ran 200 in oz Airtronics servos. You do not need two servos per aileron on this plane if you run a strong single servo.

The second, and most important thing that is wrong in the setup is the recommended servo arm length for the aileron servos. In my opinion this is where the flutter problems are stemming from. If the recommended one inch servo arms are used and then the linkage on the aileron horn is shortened to get the full 3D throws, you have a ratio created that creates a mechanical advantage that will over power even a 130 oz in servo if the dynamics for flutter are encountered. If you want to set you plane up for full 3D throws, which I assume most people want to, you need to go to 1.5" servo arms which will allow 3D throws while keeping the length on the aileron control horn long enough to keep the mechanical advantage in a safe zone.

BTW, the ailerons being large is not the problem, it certainly exacerbates the problem, but using the setup as recommended above will allow the full use of the large ailerons for 3D and still have a flutter-free plane.