No. I didn't seal the hinge gaps. I guess I should have. I believe the depth of the elevator surface may be a troublesome part of this plane at high speeds. The elevator control surface is fairly short in length, but long in depth. I believe this can cause more "flutter" and stress on the elevator than the plane can handle. Again, this may only be a problem during high speeds, like the full throttle dive that I did! I believe that most planes designed for speed have a long (length) elevator, with short depth. Of course, this is not meant to be a speed plane either.
I've performed countless full throttle dives with that motor in a Mustang PTS and it always held together.
Anyone care to perform a full throttle dive with their Escapade and report back their findings?