Have you tried frisk film for masking? - sorry if I might be captain obvious - I've not scanned the whole thread. I'd say they do the plotter thing, but over the years I've become mentally good with a scalpel - years of graphic design and mock ups.
I haven't tried it but that looks useful - wonder if you could create your mask, apply it to a blank shell then liquid mask the entire shell then remove the film - taking the mask with it - to create the detail needed.
Have you tried frisk film for masking? - sorry if I might be captain obvious - I've not scanned the whole thread. I'd say they do the plotter thing, but over the years I've become mentally good with a scalpel - years of graphic design and mock ups.