Unclear.
Are you taking an all-flying horizontal and making a fixed horizontal and movable elevator, with the hinge line of the elevator at 45% of the total chord?
And is that elevator going to be statically and dynamically balanced?
Your hinge line position is VERY important!
Any further back than 25% of the chord of the -elevator-, and it will be unstable, trying to go to one extreme or the other in flight.