I recently got a Parker 45 Flighter with a 14K gold nib. I really love it, it has been a great writer so far. I'm really interested in trying some iron gall inks, because I like the permanence aspect to them, as well as the fact that they darken the longer they are on the page. I just really like the idea of them and would like to try some out. I was thinking of trying KWZ Turquoise and Mandarin in particular, because I love the colours and they're supposedly really wet inks, which I think would go well with the pretty dry, fine nib I have on the 45. I want to use them in the 45 because it doesn't seem to have any metal parts that could corrode, has a gold nib and is easy to take apart and clean.
Anyway, are there any parts that could corrode that I might be missing? Or are there any other reasons why you'd advice against using iron gall in this particular pen? I know the risks of iron gall inks. I clean my pens very often and use them daily, so I think I'd be fine. I just don't want to ruin my pen because I missed something.