hi copperrein
i haven't done the 6 month thing, but the 7 hours in a camera thing
( kind of the same but different )
you get 1 scan out of it, and it starts to get grey ...
you put it in a drawer dark as night, and it will turn grey too ...
i haven't done it, but making a copy neg ( using a camera )
will preserve it better than any other method ...
i just convert mine into numeric-ephemera ...
i also have sistan ( AG STAB ) that i was going to
soak them in to see if it would convert the stain ( sun stain/image )
into something that lasted a little longer, but my bottles of the curious liquid
are still unopened in a box full of shipping peanuts
have fun !
john