Have discovered an amazing thing. I needed some form of fine resist for the paua commissions and plastic would have left too heavy an indentation. I thought of using salt again but the last time I used salt after a year the residue started kinda 'growing' on the paper which wa not great. On the spur of the moment decided to try my own hair (it's falling out at the moment anyway) as a form of resist and I am SO pleased with the resulting fine tracery on the surface of the work. Thought it would be a good idea to note it down so I can remember to do it again.