Worked on stringer extensions and top angle stringer (spline) all the way back to P-A-007 bulkhead. Installed both lower inside corners, what a pain to get the proper angle on F-06 bulkhead, Installed one upper, the angle is hard to match. It doesn't look good but I think structurally it's ok. It's taking a long time because the information I got from Bush Caddy is sketchy at best. They are sending me more accurate information soon.