To answer a few of the questions, for blades, I'm using 3/0 jewlers blades from Mike (Flying Dutchman) but also use blades from Sloans on some projects. I have used all the way down to 0/8, but those are tricky. I have not been using a jig or anything else lately, just holding it by hand. On smaller coins, I have to use superglue to attach them to wider piece of wood that I can grip.
----Randy