Ken, see attached plans of a plane I've made by the hundreds.
I saw this design on a 1968 or ' 69 TIME magazine on a feature about a Japanese paper plane contest, since I've flown some, and added some improvements.
Try it, it's a different kind, compared to the ones you have on your site.
Congratulations for your achievements.
Best regards
André C. Schwob
Margem esquerda do Rio Patauateua
68825-000 Muaná - PA
Brazil

Unfortunately these are files I could not recover when Yahoo deleted my files.