Everyone's experiences and apprehensions with iron gall inks seem to be all over the place. The take home message is usually something along the lines of "if you exercise proper pen hygiene and use modern iron gall inks formulated for fountain pens, you shouldn't have an issue". I've followed this and nope, haven't had an issue yet. What I do get apprehensive about is the reasoning behind the iron gall cleaning routine.
It seems you don't want the ink sitting in the pen for very long but the issue arises if you want to dedicate IG ink to a pen. For example what if one were to use IG inks in a steel nibbed pen with proper hygiene (rinsing, thorough cleaning bi-weekly at best, etc) but kept refilling the pen with IG ink? Wouldn't the contact time with the steel eventually corrode the nib?
That's my question -- about the hardiness of steel when exposed to IG ink with proper pen maintenance. Anyone have positive/negative stories to share? This includes IG ink experiences of all kind with any nib/pen material but i'd especially love to hear from folks that have been using an IG ink in a particular pen for a long time (e.g., >=1 year). How does your pen fare under these conditions?
P.S: Currently using ESSRI in a lamy 2k and am loving it. A left-handed overwriters dream!