I have a Wood Dynamics ZCI in my PM66 and I'm in need of the red oak inserts that slide into the insert. The Wood Dynamics web page says they are temporarily out of stock but they've been saying that for awhile. Are there any other sources or do I assume I need to make my own? It doesn't seem like it would be to hard to whip a few out but my time in the shop is minimal so buying them would be a better option.