If you two are done bickering ill answer the question.
I used the Robust Akzo Nobel epoxy primer for the insides of the wings, ailerons, flaps and horizontal stabilizer because there is really no good access here for inspection or repairs. The VS and rudder are easily replaceable if corrosion ever becomes an issue, furthermore I wore surgical gloves and left the blue plastic on as long as possible while building these. My QB fuse came with a cheap *** wash primer that I think would have been better left off, because it appears the surface was scuffed prior to priming. The inside of the fuse is easily accessible for inspection or repairs if needed. I am not priming any parts moving forward. It's probably less time consuming to simply replace IF it becomes an issue. Take the wheel pants for example, you could change out a nose wheel support bracket in less than an hour...