RE: R and D
A new 260! Sweet. DA 100 size even more perfect. I am sick of the Yak thing really am. I had one of the "best" yaks and was completely not impressed. The nice thing about Extra, Edges and Caps is they are a versatile airframe. The Extra is really a jack of all trades. What I enjoyed and still enjoy about an Extra over a Yak is the ability to speed it up for 3D. It seems to recover and respond faster than most all the Yak's I have flown.
From the videos I have seen the 35% Extra flies exactly like the 41%. If you put a 3W106 or BME 115 in that size airframe I can imagine even more ballistic performance. Much more bang for the buck and a plane that flies just as well.