Has anyone tried/use the Olsson Ruby nozzel?
I have not, but I’m interested in hearing about other people’s experience.
I would recommend using the YASTH filament holder (https://www.thingiverse.com/thing:2823943). With the stock filament holder, I would get a lot of powder on top of the 3D printer module from the filament rubbing against the inlet. With an abrasive filament, that could cause problems (both the rubbing and the loose powder). The YASTH has (so far) completely eliminated the powder.