I don't think it just me or my Ecos but I have and issue with my eco. I need to prime the feed about every 2-4 pages I write.
For example first time in the morning I do is to write essays/text in general and after 2 pages my shading ink is not shading anything and is a lot lighter then my letters are missing some parts like T letters the '-' part or something like that then I screw my piston for a little bit so I forced some more ink to my feed and after a while I have the same problem. I know some others have the same issues but did you guys find a solution to this or just try to deal with it.
Btw I write in Rhodia paper with Noodler's Blue-Black Air-Corp. Twsbi Eco M and F nib.