On page 10-02 there are a number of parts that are separated (stiffeners, cable guides, and battery angles), however now that I'm approaching the end of the empennage build and the crate is almost empty, I see that the two F-1037A battery angles are still in the box, unused. I've checked all of the emp plans and don't see where they get installed. I find it troubling to find unused parts, but no reference (as far as I can tell) on where and when they are to be installed.