I use a Waterman Expert medium with no problem as explained here. I bought a Waterman Expert fine and I'm having similar problems with skipping. Not quite as bad as you describe though.

At nibs.com they will do an adjustment on the nib for you. They also have a page that has some suggestions that you can try yourself before sending it in.

...dave
insomnia cure

I got my order of Noodler's Ink today from Pendemonium and spent all afternoon playing with them. I found that I had to throughly flush out previous inks to get them to write well. My Lamy pen never wrote well before this and is now doing beautifully with the seateaque color ink in it (turned out to be more blue than green, but still love it). My Levenger pen has been a disappointment from the start, have the Pushkin gray in it and won't write consistently at all - I'm going to try a pen cleanser before I give up on it. The Cross pens I switched over to Noodler's did beautifully from the get go.

Hmmm, I suddenly realize that I may have too many pens...

I got some free pens with some of the inks - the one called Year of the Golden Pig is a highlighter and is so, so, so cool. You can highlight over other fountain pen ink and it doesn't run at all.

Bottom line I think the pens just need thorough cleaning out before you put in the Noodler's and you'll be good then.

I have a Pelikan Future M nib that becomes a horrible and skippy writer with Noodlers, even colors like Aircorp Blue-Black which are noted for good flow.

I've just resigned myself to the fact that Noodlers, being a very saturated ink, doesn't play well with all pens.

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"In some situations you need to ask yourself 'WWRD?' What would Riggins do in a situation?"
Landry Clarke -- Friday Night Lights

Different pens work differently with different inks, so it's a matter of finding the right match. For reasons unknown to me, some of Noodler's UK and Russian inks (the Pushkin someone mentioned is an example of the latter) can be fussy in some pens. I have the gorgeous Socrates (a UK ink) that I still haven't found a pen that works well with it.

If you want other colors but still feel you need to use Waterman's, there are several other colors to choose from, not just purple. Their blue-black can be very nice in some pens. I tend to prefer juicy pens to dry ones, and like my inks saturated, so I'll usually end up with Noodlers or Private Reserve. I have had good luck with Aurora inks, but they only come in two colors - a deep rich black and a purplely blue that I just adore. In my experience, the Auroras tend to be very well behaved.

Have to say though that Waterman purple in a demonstrator would be gorgeous! I keep Noodler's Purple Martin in one of my Pelikan demonstrators and love to see the sun shining through it as I write on a sunny afternoon. :)

I know some FP users add a TEENSY bit of dish soap to ink that doesn't write very wet. However, I've never tried this myself, and if you try it, you might not want to try it on the whole bottle right off the bat. You only need a very tiny bit, like, I'm thinking less than a drop for a whole bottle of ink.

I believe there are also ready-made formulations out there that you can buy to add to ink.