Just received my Selden bowsprit kit and GX furler. I want to use my older North Gennaker with this set up but had heard that a stiff headboard might be problematic. Although there is some flexibility in the headboard I wonder if it will wind around the anti-torsion cable tight enough to start the furling process. Has anyone used their older sail with one of these newer top down asymmetrical spinnaker systems? How did it work for you? Thanks.