Ryan,
Thanks I will try that, but with a red marker. My mandrel is black for some reason.[
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As for woodcraft, I tried one of their mandrels once. I used it one time and now it is used for finishing only.
One thing I have learned was to use a separate mandrel for finishing if possible. This keeps my turning mandrel straighter and I don't have to worry about getting polishes and other stuff on the mandrel. My first mandrel was ruined when a piece of grit got under the bushings during sanding and harden on the mandrel. When I pulled the pen off, it left grooves in the mandrel.
I would love to find a place that just sold the rod and not the taper so that I can have extras when I work with my kids.