Is it just the "blowhole" described here?
https://fountainpenchronicles.blog/2022/06/27/breathe-just-breather-tube/
I don't have one of these, unfortunately, so don't have a comparison...
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Is it just the "blowhole" described here?
https://fountainpenchronicles.blog/2022/06/27/breathe-just-breather-tube/
I don't have one of these, unfortunately, so don't have a comparison...
Oh! That looks just like it! I bet that's it, thank you!!
I'm not familiar with that pen in particular, but railroading may be associated with the ink rather than the pen. Try a regular ink and see if you still get railroading.
Shimmering inks carry tiny particulates that can get stuck in the feed and obstruct flow. Sheening inks can form crystals in areas where it's dried out a bit. A simple ink or even a lubricated ink may give you the flow you're looking for to keep up with the flex.
Good luck!