About elevator chord design consideration.
How thick is the airfoil...?
Do you want more or less built in sensitivity around neutral...?

I used to fly C/L slow combat with a guy who had planes with little nubby elevators [1/2" chord x 12" span] and typical thick wings. He liked the lack of sensitivity around neutral, it contributed to him being able to fly without looking at his plane so much and paying more attention to the other guy. Problem was even with the plane set with a typical CG the elevator was pretty ineffective for manuevering unless it was at full crank like a speed brake. His models couldn't consecutive loop at all, there were mostly wallowing messes on the verge of stalling whenever he tried to do anything aggressive.
He was never talked into trying more chord for many years. Years later he resurfaced with Russian built RTF planes [like a Mezjslik or a Yuvenko] that employ a good amount of elevator chord and these planes are World class flyers with just average power.