QUOTE (ChrisPaul @ Jul 23 2008, 01:52 PM)

Greetings!
Currently, the only piston filler I have is a Lamy 2000. I'm thinking of trying a Noodler's lubricating eel ink (probably the blue) to loosen it up a little and was wondering if anyone has an opinion on the eel inks. Do they flow well? Good color? Any negatives? Thanks!
Best Wishes,
Chris
I use Eel Blue in an ED rollerball pen, and Polar Blue (a lubricating ink related to the Eels) in my Lamy 2000. I like both colors (the Eel Blue is brighter). Polar Blue feathers at temperatures above about 70F, though on some papers it is ok at any temp. The Eel Blue might give you a slightly wider line than another ink, but it is (in my opinion) nothing you'd be likely to notice. Both of them flow extremely well. The piston in the L2K was ultra-stiff when I got it and was using non-lubricating ink -- once I started using Polar Blue, the stiffness went away, so afaik PB works as advertised.
Eel Blue dries a little slow, so if you are a leftie, you might have a smearing problem with it. Polar Blue dries quickly, in my experience (I live in a dry climate, might take that into account).
If you are right-handed and live in a warm climate, I have no reservations about recommending the Eel Blue for your L2K. If you're fussy about feathering, and you don't work in an air-conditioned/cold environment, I wouldn't recommend the Polar Blue (even though I personally like it, in spite of living in Texas and working in an office that stays around 85F during the day in the summer -- I don't have feathering problems on Tops planning pads, though the lines are a tiny bit wider than they would be with another ink). If you live in a place that stays cool and gets downright cold in the winter, I whole-heartedly recommend the Polar Blue.
Don't use either of these inks in a Moleskine notebook -- not good paper/ink combos. If you use Moleskine notebooks, the best choice is Noodler's bulletproof Black (not the Eel Black) in a fine nib. This might militate against using the L2K in your Moleskine (I do use mine in the Moleskine, when it's the only pen I have handy, but I don't write much when I do that).
You can also mix Eel Blue with Iraqui Indigo (50/50) and get a nice color that does not lubricate as well (maybe) but that also does not make lines wider than your nib.
In their defense, not all Eel inks have the same characteristics. Eel Red, for example, is quite well-behaved (I use it for markup in editing).