I thought I would put a core clear picture of the control surfaces mods. I used a small round file to make the concave in the vertical and horizontal stabs. then used half of a piece of round sprue for the elevators and rudder. I used the sprue coz the glue hold it firmer than using styrene and super glue.
I think I have gone bonkers. Am putting hinge plates in. Just cut a slot, stuck in some of the little flat brand tag from the sprue, glued it in and filed down to fit after it set.