Duco is about 10x lighter than medium CA as a lot of what you apply will evaporate during drying. So, when applying, you can use a decent 1/16” wide and tall “bead” of glue for attaching parts like the stabilizer to the fuselage. Duco is not instant bonding like CA, so when attaching the stabilizer, the glider would be fully assembled (wing attached), with supports like wood blocks under the wing dihedral, and small supports under the stab tips to keep it level (or tilted a couple of degrees if the glider design indicates), run your bead of glue onto the fuselage attach point and press the stabilizer nice and straight onto the fuselage. Then don’t touch the glider for at least an hour. Duco joints connecting light parts are strong enough to handle in less than an hour, but the glue cure time is more like overnight.
Another Duco trick when extra strength is needed (like when bonding carbon to the fuselage) is to precoat each surface with glue (unlike CA, dry duco bonds well to dry Duco with more Duco added) then wipe most of the precoat off right away, and after allowing the precoat couple of minutes to dry, place a bead of glue along the full length of one of the surfaces to be joined and press the parts together quickly before the bead of Duco starts to dry. A 1/16” wide .005” carbon strip (sanded for a few minutes on each side with 150 grit and cleaned with a rag and rubbing alcohol) applied in this manner only weighs 0.01 grams per inch and adds enormous stiffness to light balsa.