The stabs and wings are both composite structures. The surfaces are center hinged in a unique Comp Arf method. The wing skin overhangs top and bottom esentially sealing the hing lines. The wing and stab tube are CF. The wing tube has a seam along it. The wing tube is a bit heavier than a similar sized Oxai tube.
The wing tube weighs 113 gms, stab tube 16 gms, left stab 121 gms and right stab 122 gms. The right wing is 414 gms and the left wing 401 gms. Weights are hinged, just need servos horns and linkages. The trailing edge of the wing is beveled.