After tweeking and messing around with my numerous Noodler pens for far to long, I have finally found the issue with them that causes ink to be found in the cap, and fixed it!!!! So the issue is that some of the feeds used in these pens have feeds that are too narrow which allows ink to pool on the barrel wall and eventually drip out. After trying heat setting and other not very useful methods, I found the simplest and easiest way to elevate this issue. TEFLON TAPE.
You take some of the Teflon tape, and wrap it around the feed (without the nib on it) once or twice, align the nib with the feed (now widened with the Teflon Tape) and refit in the barrel. This solution literally costs pennies and works great.
After trying this with a variety of pens with this issue, for a bit of time, I have experienced no flow issue and NO DRIPS. I have been using my Ahab with the refitted feed for months now and no issues at all and I was able to remove the Teflon Tape after months of used with ease and reapply some tape after some thorough cleaning of them pen.
Do be careful that you don't add to much tape, making the feed to wide and possible cracking the barrel (don't force it to much).
Hope this helps.