Both the stabs and the wings fit the fuse exceptionately well. Comp ARF did a nice job with that. The stab is mounted to the stab tube with a 3 mm cap screw on each half going into the tube. I used the Integral manual for their suggested method. Drill a 2.5 mm hole throgh the bottom of the stab, through the stab tube sleeve and into the stab tube. Try to mark the center of the stab tube location and drill perpendicular to the centerline of the stab and not perpendicular to the stab surface. The first side I did that and had to open the holes a bit. I placed the hole just outside of the stab tube support that you can see from the root of the stab. There is another suppport at the end of the sleeve and the hole fell right between these two. There is no material between the stab skin and tube in this location so the cap screw will be sitting on the tube sleeve when tightened. Use the screw to cut threads in the stab tube and open the hole in the tube sleeve to 3 mm or a little more if you need the wiggle room. Open the wing skin to 5.5 mm for the head of the cap screw to fit through. The integral manual shows an upside down blind nut with 2 sides cut down to fit inside the tube and glued with epoxy/microballoon mixture. My reccomendation is to try and preserve the threads on the carbon fiber tube to guide the screw in the proper orientation. Wax the screw (I use soap) to prevent it from sticking to the glue and glue in the blind nut. Once the glue is almost hardened I would reccomend removing the screw and installing the rod into the stab nad see if the screw goes straight through the hole in the stab skin. I had to modify mine a little bit. Once satisfied let the glue fully harden and then do the same for the other side. Just drill the first hole with the stabs installed in the fuse and tight against the fuse side. Another option would have been to glue a small piece of hardwood dowel into the stab tube and drill and thread that. I think that might be an easier method.

The stab servo cutouts are small. 27mm long. Not sure what servo they had in mind but I doubt anyone would go that small on the tail of a pattern plane. I use JR 3421SA servos and they are about 31mm long so the cutout has to be opened.