A little cryptic but I'm game.
... So I looked at the Extra 330S. Unmodified it hovers much like my real Funtana, but its cg is tweaked forward 2.8 inches and it requires alot of down elevator to fly level inverted. Moving its cg back (to -4 inches) makes its more neutral upright and inverted but then it begins to get easier (too easy?) to hover again.
But it is better than the Shocky and the Funtana. I'll look into other parameters like incidence and see what else I find.
Clark