Hi Mike.
Just as a matter of interest for some of your future "dope" projects. "silver" dope is purlely a clear butrate or nitrate dope with alluminium powder or paste mixed in to form a UV base.
It is only "semi" shiny when brand new and tends to go a little dull when exposed to the elements.On your WW1 and some WW2 planes the tipe of finnish you might look at is to brush on the silver (Tamiya X-11 works well) on to the surface.The production planes had the dope , even the colloured dope aplied with a brush ,it wastes less dope and any unskilled person could do it.The planes I have seen has quite a streaky look to it.
I aply silver dope to the planes I rebuild for folks with a spraygun only because it gives a nicer finnish.
With regaurds to the fabrick being more shiny than the metal painted aluu fuselarge I find confusing.The paint on the allu would most likely have been an enamel or similar ,wich is usually more shiny than the dope.
Good luck witrh your plane
Theuns