I spray lacquered the bulkheads and then removed them from the laser boards.If the burn marks bother you you could sand them off before lacquering and then sand off the edges after removal from the laser board.I plan to weather these so I didn't bother.
Temporarily dry fit the bulkheads to the jig making sure the oval ones are right side up.(At this stage the aircraft is upside down in the jig)A few of the bulkhead frames will require some additional parts to be glued to them before final assembly .Read the directions carefully.
The initial stages of the fuselage build progresses quite rapidly due to the type of construction(monocoque) plywood over frame, which eliminates the need for all those internal wires and braces.
