I primed the VS skin (inside) by scuffing it with scotch brite and cleaning it with the degreaser. The guys at the auto paint store (where I bought 2 new cans of primer) said I could battle the blisters by starting with a very light coat first and then coming back 5 minutes later with a heavier coat. That seemed to work fine.I then clecoed the VS skin to the front spar and ribs. It is now time to start riveting the skins on the HS and the VS.
My paint booth, a batman sheet over the Spitfire
Sem self etching primer and PPG degreaser
VS all drilled, deburred, dimpled, primed and clecoed, ready for skin riveting