I would be most grateful if those in the know would educate me on the subject of barrel arbor holders. 🙂 How is a barrel arbor holder different from a pin vice? Is using a pin vice to hold a barrel arbor frowned upon? If one were to purchase a barrel arbor holder, what is the most common size for working on wrist watches? Are there cost effective options out there? All I seem to see are pricey options from Bergeon. Thanks!!