Rotary Fly Tying Vises

Jim Edmondson wrote:
I have been fly fishing for about a year and am thinking of trying
tying. I saw some videos on the Nor-Vise rotating vise system and it
looked very interesting. A couple of questions:

For those experienced tyers out there, is having the ability to rotate
the hook as useful as it appears to a novice?

What are the downsides? One thing I thought of is with the bobbin on
the stand and the hook rotating to add body materials, the thread will
twist, is this an issue?

Are there other rotating vise systems out there in addition to the one
from Nor-Vise tha I should consider?

Thanks for any insights that you can offer.

I use the Sal****er Renzetti Traveler, with is useful if you want to tie
large flies (salmon, steelhead, bass, sal****er fish). You give up some
functionality for small flies, but it's still workable for them.

I rarely use my vise as a true rotary, and I feel like that's only
useful for "production" work, but it's really handy to be able to turn
the fly over to dress the undersides.

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