The best way to make a balsa skin:

[link=http://www.airfieldmodels.com/information_source/how_to_articles_for_model_builders/construction/edge_join_balsa_sheet_skins/index.htm]How to Edge join balsa sheet.[/link]

Whenever I decide to use CA for anything, I stop to think, and then I select the correct glue for the job. It never is CA. (But this is just my opinion.)