I like the 10cc cap myself. I also agree with Joe W's comments about not nescessarily limiting designs based on year designed/introduced. Many of the early turnaround pattern designs are also classics....Aurora, Eclipse, LA 1, etc. One important advantage afforded by this would be a potentially larger membership base....something for everybody? As mentioned previously, the classic style pattern schedules themselves will gravitate folks towards fast and sleek.

How about a max wingspan and/or wing area rule? 800 squares perhaps?

Jeff L