I currently build the Heinkel He 100 V-8. I enhanced the cockpit with a lot of scratchbuild parts. I had the option to glue the cockpit section into one fuelage half and then glue the halfes together or glue the cockpit section at top of the wing section an then glue the whole wing section to fuselage.
I decided to do it in the second way. Glued the fusalge halfes together and then glued the wing section, which fitted perfectly, to the fuselage and set it aside for drying.
The next day, when I came back to the workbench I looked into the fuselage and thought "that looks very empty"
The next thing I saw was my Cockpit section, still sitting on my cutting plate and waiting to be glued on top of the wing section.
I had to break of the complete wings section again to get the cockpit section into the fuselage.