RE: Making large sheets of balsa help please (Ryans Rebel)
Steve,
Your idea will work just fine. I normally edge true two pieces and tape them together with masking tape. Next hinge open the two sheets and fill gap with wood glue. Close up, wipe off access and allow to dry. I normally weigh down with wax paper & magazines. I would not be terrible concerned about having a doubler over the entire joint. Reason being is any glue used is stronger than the balsa being glued together.
Another option is to splice near the leading edge of the stab where then plans already call off for a doubler.
Either will work fine.
Ryan