I am working on some new ziricote scales for a Koken razor, and could use some advice. The scales are currently 3/16" thick, and need to be rounded and smoothed around the edges. Right now they are pretty stiff, and I am worried about the tang fitting between them while the spine at the end of the toe is able to stop the blade from passing through and exposing the edge while folded. Do I need to go thinner, to 1/8" or so, or can I soak in wood to increase flexibility, is there something I can do with the shape of the wedge to help, or should I put in a stop pin for the tang?