i got a drawback on the build. I believed 4mm cf rod would be strong enough to keep movement of the sidebooms and elevons, as i used as hinge center. Well, it wasnt, i got much flex when actuating the servo movement. The cf rods are nice strong, but not so much in a "twisting" direction.
Only way to solve (?) is going up in dimensions. Not biggest problem, but irritating when the system was done. And using cf tubes, also inside, then i get a change to put in eg. aluminumrod, or other things later to support, if needed.