John, reading your post and admiring the Extra 300 has broght to the forefront an idea that I have had on and off over the years as regarding scale and PA.........:-)
I think that it would be great if there was a SCALE PA class in c/l.
There are so many really fantastic aerobatic airplanes to chose from and even beginner, intermediate, and open class. I think that it would be a challenging and interesting additional event......:-)
100 percent scale outlines and volums and a displacement to wing area rule...Oh, and scale airfoils.................:-) Clipped wing T,Crats, and J3s and Citabrias among others for beginner, Pits Specials, Christian Eagles, and Steen Skybolts for Intermediate, and Sukois, Extras, and Yaks for open.....along with many others that are suietable for each class...........what ya think??