Originally Posted by CloudyIFR
Would you please explain how chaning decalage affects balance or vice versa?
I can see how it affects trim; whether a full flying or articulated horizontal tail.
I didn't say it effects balance directly.
But if your plane is trimmed for a certain AoA, and you change its decalage, you will need to re-balance it if you want to be trimmed for the same AoA (in straight and level flight, that is). If you settle for a different AoA we're not comparing apples to apples.