Originally Posted by Kenny Sharp
Why don't you guys just dial in a bit of down elevator?
Kenny asks the right question. The most important part of the recommended mods is the movement of the CG to the rear. The stabilizer decalage is much less important and may not give a significant difference in performance. There has been endless discussion on RC Groups about the stab decalage. Much of this discussion about achieving improved performance has become confused because the decalage was changed and the CG was moved at the same time.
See the writeup by MIT chaired Professor of Aeronautics and Astronautics Mark Drela.