Thanks, OBX.
You got that absolutely right. I find that the screws (when extracted) tell an interesting story. I have a whole work-up on samples of screws extracted (heavily illustrated photos), where the screws rusted badly, and what materials the screws were living in when the rust occurred.
Typically, where the screws penetrated the aluminum, the length of crew INSIDE the aluminum was shiny/new. In a few cases, the screw section inside the aluminum was rusting (was there water running through the aluminum tube frame intermittently at some time?)...
Nice to be able to do material "forensics" as you dis-assemble...
I believe that our camper is now indeed quite a bit better than new !
Cheers,
S-
