Cap 21 ?
Good write up Bill! I have the GP Cap 231EX ARF (aka Splat 231). I bought it used (pre-splated) and rebuilt it. It flies good, but you have to watch how much elevator movement you have (too much and it'll snap). Try a loop at moderate speed with full up elevator. If you have too much deflection, it will look like a snap roll! I basically have low-rates set just enough not to snap and high rates at 45 degree deflection! At high rates it tumbles great! Fun airplane, but you have to keep an eye on it!
-Chris