Lil' Satan and friends

Roddie the reality is it DEPENDS...( stabilator offset inline, above, or below wing Center line)

BUT I tend to think the original designers tested each before kit creation for mass sale

In this case the stabilator flying plane is slightly above wing center line ---- I built the psuedo ace winged Lil Satan bash keeping that relationship and it flew better than I can

I also built the Goldberg and later the Brodak Lil Satan kits, as per plan, and they both fly good with the stab slightly above wing CL

Remember this is a deliberately twitchy tight turning COMBAT plane and not a precision stunt ship where turning radius inside or outside loops being the same and repeatable are necessary

For a precision stunt plane many other factors aerodynamically come into play
Flaps...yea or nay
Engine Thrust line, offset up down or in or out
Laminar flow over wing and stabilizer relative to elevator (very rare to see a stunt plane with just a stabilator)
Engine and prop induced gyroscopic precesion
distance from wing TE to Stab LE

There are winning NATS and WORLD stunt plane designs with just about every different configuration except Canard

Many, perhaps most, designs are NOT Zero Zero Zero* incidence aligned....some are

* Thrust line, wing, stab/elevator all on same plane

Back to the Lil Satan...I doubt the way it fly's--- if any of us could definitively say: stabilator inline, above, or below wing CL makes any difference

too cheap and small a plane to even spend much time worrying about,,,,build it per plan and go crash the hell out it it giggling very flight..... a lot of Adrenalin load with this bugger!....grin