Paul, The tubing in rolls is a great idea. I've been using dowels and the plastic sleeves from a hardware store. In my version of the Wadd needle the 1/4' lead rod is not put in the middle w/the thru wire inside. It's offset approx. 3/16" on center below the wire hole. Becauseof the plug taper the insert hole becomes exposed and this requires a dowel filler. When done inside the blank b/4 turning it eliminates shaping the dowel after the fact.
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