I have the Jo-jan multi fletcher and I really like it but it took me a while to get it set up the way I needed it. It was a gift so I'm not complaining. The guy that taught me to build arrows uses a bunch of Bitzenberger jigs and he makes the nicest arrows I have ever seen even better than any custom arrows I have ever seen. So if it was me buying I would get a Bitzenberger and if you really need to do six at a time just buy a bunch of them.
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There's plenty of room for all God's creatures.....right next to the mashed potatoes.