Pain in the A$$
The Crush Grind mechanism is ceramic, so can be used for pepper or salt.
The other manufacturers are typically stainless steel, so good for pepper only.
I think they all will grind the same.
The shafted design allows for more variation in the shape of the mill, since the bottom section is small.
The shaftless design has all the workings on the bottom, so need fatter blank to fit, and the bottom section will not be able to be shaped as much.
More of a "taste great" vs "less filling" decision.
For a novice/rookie turner, which would you recommend based on difficulty level:
- Crush grind vs SS
- Shaft vs Shaftless