Before putting in the upper stringers, Tim and I put in a cockpit floor, using a scrap piece of 1/16" wing sheeting between the two formers. The floor's base is made from 1/4 x 1/4" balsa glued to the inside surfaces of the formers (just above the cut-outs).
Eric chose not to as he plans on tinting the canopy and won't see inside, anyway; so he went straight to gluing the upper stringers in.
With the floor glued in, I glue in the upper fuse stringers, and wipe away any excess CA:
