Don't over analyze. I have my Skybolt balanced at the recommended position and it flat spins like there's no tomorrow both inverted and right-side-up. It also does beautiful blenders and snap-rolls. The secret is max throw in rudder and elevator. I use max rates for extreme aerobatics and recommended high rates for general flying. Recommended low rates are too docile for anything except gentle loops and rolls and flying the pattern. The plane is very tough. My Skybolt has about a year and a half of violent snaps and rolls with absolutely no signs of stress on the airframe.