Sometimes the obvious takes a few years to thwack your brain and make it pay attention. For those of us who prefer internal glue strips for joining fuselage sections and wing trailing edges, what faster way to produce those strips than simply printing the model twice! Using the cut up sections themselves couldn't be more accurate for fit, and they're precolored to match already! And to think I so laboriously, meticulously drafted out glue strips when the ten second answer was right there in front of me all the time!
Well, hope this idea saves the rest of you who like smooth flush joined fuselages some time!
Incidentally, I no longer V-notch glue strips - it's both too time consuming and can lead to uneven exterior surfaces as the paper flattens out on V-notched tabs. Instead I cut thin whiskers into the tab side (and don't worry if the cuts slice across the joint line) - it's quick, and the joint much smoother because the whiskers are too thin for any flattening out against them.