Hi KidE- I agree with you. If you state you covered with Japanese tissue and nitrate dope I wouldn't 'convert' the meaning to silk and butyrate dope or silkspan and nitrate dope. The AMA article had some glaring miscrepencies. This isn't about semantics. It's about accuracy. Silkspan does not equal silk. I have used silk, silkspan Jap tissue, domestic tissue, various films and fabrics and even Tyvek and cardboard to cover wings and things. I keep silk and silkspan 'in stock' at my house. I buy and use thinners and dopes by the gallons, in some cases.