How useful is a tension tool built into a pick gun.

[pickmonger]

I love all the "cool gadgets" to play with when time permits. Yes they often don't work well enough for every day use or take a long time to learn.

The Cia had a Pickgun with various tension tools built-in that permitted torque on the cylinder by turning the Pickgun itself. A one handed method.

Keith Melton shows it and John Minnery's book Pickguns shows a copy of the user manual.

I suspect that there would be a long learning curve to get it to work but I would appreciate any comments and/or insights on
this idea.