Hi drtyTshrt I like your forum name. My wife calls me that sometimes.
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Are you doing these with a rotary? It is pretty good if so with a rotary as I think it is much harder to make a clean long cut with the rotary tool and a single pointed graver. Once you figure out the graver cutting the groove it makes steads you from side to side from wiggle or shaking that happens with hand holding a rotary tool.