Today I fabricated the angles that go on the inside of the fuselage for the tank attach bracket. F796B , C,D. C,D are spacers that sit under the angle. Basically I drilled the hole on the plans, clamped/held them in place and drilled. I then removed the build up and drilled the rest of the holes. This went pretty smoothly. The dimensions in the plans for this angle is for me at least a starting point. I had to install it and remove it a few times to get the fit right and edge distance as good as I could to acceptable. Lastly I up drilled the top and bottom holes to 3/16.