I started working on the bulkheads in the center
I cut the foam 17"x 25" the stringer are lumpy and bumpy so I cut them big and shaped them back.
I had 3" hangin above the stringers so I took an extra piece of foam that was 3inches wide and used it as tracer. once it was fit into place I used the laminate trimmer to put a bull nose on the bulkhead upper corners to make it easier to wrap the glass around it.