How flush does the filler knob fit with the barrel on a Lamy 2000? So far, two of mine has had a slight ridge/flashing. Is this normal? Thanks
Also, is the cap supposed to post with a soft click?

GB- the piston end should be absolutely flush with the barrel, almost hard to spot. There should NOT be a discernible ridge to fingertips.

Cap does goes on with a lovely soft click as the "ears" are grabbed by the mechanism of the cap.

Sorry I meant was it supposed to click when you post the cap in the open position. (posting has also left some sort of shiny ring on the barrel) My blind cap sits ALMOST flush. Looks like the barrel has a few high spots?

Looked at mine and it is perfectly flush, can't feel anything and can hardly see it until you get the light just right.

In my Lamy 2000 is very difficult to spot the piston if you don't know that it is there. It is one of things I like the most of this pen (it happens the same with the bp, you must look carefully to find the hairline where it opens up).
As for posting, mine does not that sound you mention.
Cheers.

Yes, the Lamy 2000 barrel will show shiny spots just below the piston, from posting the cap.

Nenad

My piston is perfectly flush on my FP, the blindcap is also perfectly flush on my rollerball version... almost invisible on both.

I gave up posting with either of these pens after chasing my caps across the floor, car interior, lawn... etc... It fits my hand better when posted, but the cap was always flying off.. This would be the only thing I don't like about the Lamy 2K series... that being said it is still a daily writer and among my favorites.

The piston line should be almost invisible, you should not be able to feel it-so saying I doubt there is anything wrong if you can.

I have found that the best way to get a L2K to post is to slightly twist the cap when you post it, this roattional movement seem s to hold the cap on nicely, and I can not see this as being harmful to the pen or difficult to perform.

Sorry, I misread the original question.

The current production L2K does post somewhat "softly" and yes, it is very prone to flying off.

I find a good hard push seats it pretty well but you really have to press to get it to seat "ok."

About 90% of the time I'm not posting it when writing it, because the top of the cap is so prone to dings if it flies away...

No it's not supposed to click when you post the cap in the open position (at the blind-cap end of the barrel). There's no metal O-ring there to hold that cap such as the one at the section/nib end. Those two "ears" from the O-ring are the one you here clicking. As others have said, the cap does tend to fall off because there's nothing securing it to the barrel. I wish it had those "ears" too on the other end.

The blind cap should be flushed with the barrel when closed.

So should I send it back in because of the slight out of roundness or just live with it? It's not that major, it's just "there"

I've never experienced Lamy service, but I heard they're very good. Personally, I'd just keep it though if the nibs and all the other mechanism works well for you.