When I cut out the stabilizers I added tabs and slots to make a stronger joint. The bevel on both the elevator and rudder were cut with a hotwire and guides that I made from yardsticks. I shot some video of that process but I haven’t processed that yet. Since Depron has no paper backing to use as a hinge, I needed to get something. A couple of the manufacturers use a 3M product called Blenderm for electric hinge material. So that is what I used. I usually pin the surfaces down when applying the hinge tape. It just makes it easier to apply. Still using those red balsa building pins.