Three Vac Minis purchased between 2022 and 2024 and all three have developed longitudinal micro fractures on the threading between the grip and the body, and the threading around the pump-cap and the body-end. On two of them this eventually led to an ink leak.

The pens travel with me during ~3h of weekly bicycle commuting between my home and my work, store in a pen case in my backpack. They’re not being babied, but I’m hardly kicking them down a mountain either.

My Vac700R, ECO, and Diamond580 are all doing fine but they definitely are deskbound and haven’t seen nearly as much much field use.