I've been into the hobby for 3 or so years and have amassed a moderate collection of pens. Yet, a single issue continues to bother me and I can't tell if this is just symptomatic of fountain pens in general or if I've simple been buying duds. Without fail, it seems that my pens' ink flow will weaken the more I write in a sitting, to the point that some of them even completely dry up and I have to push more ink into the feed to get it writing again. This would not be an issue if it was just one of my pens, but it seems all of my pens have this issue to some extent with the exception of a Pilot Custom 74 with an EF nib which, I assume, is simply because the air exchange works well on a pen with such a fine nib, as well as a similar Pilot Metropolitan (maybe Pilots are just exceptionally good pens).
I have tried inks famed specifically for their wet-flowing properties (Private Reserve Tanzanite comes to mind) as well as adjusting adjusting feeds and nibs but the issue persists. It seems the moment I sit down for a long writing session the feed will eventually dry up and require some fiddling to get running again. This is not even an issue exclusive to my modern, plastic-feed based pens, as I had the same issues (leading to skipping rather than total drying out) in a Parker 51 with an ebonite feed and an Indian pen with an ebonite feed. Alongside this, I have had issues in both very fine pens that demand light ink flows and extremely wet, wide nibs.
Similarly, I have had issues in both eyedropper and converter-filled pens, even after thoroughly washing them and even placing a ball inside to break up surface tension. It seems, regardless of what I do with my pens, air is simply either not exchanged fast enough for a constant flow or not exchanged at all. This is especially frustrating because it fills my writing sessions with dread as I simply have to anticipate and watch as the flow weakens, and it defeats the purpose of using high-capacity pens since I have to waste time fiddling with them anyways. Is there some issue with my writing style (I tend to write relatively fast, but nothing insane) or is this an issue inherent to fountain pens? Do people not write multiple pages in one sitting, as I see this issue very infrequently discussed as well?
Edited by Vindiction, 11 September 2020 - 08:49.