Omas New Paragon--any known recurring problems?

[howf]

I'm contemplating acquiring a Omas (New Paragon) (the larger one with the metal section). Are there any known "defects" or frequently recurring issues with this piston filler? For example, I've been told that the 360s are prone to leaks where the section meets the barrel. I've also heard that the metal piston system is more smoother than other models. Appreciate the group's insight...

[mulrich]

I had the blind cap come unglued on one of mine but that's a relatively easy fix. The pistons can also be stiff but that's true of most of my Omas pens.

[Peli]

I love mine that I've used for six months. The only issue, other than the stiff piston knob referenced above which is true for mine too is that the nib and feed MOVE around. That is, they can creep this way or that way in the section since there's a little "play" there in the fit.

I might try to heat up the ebonite to see if it expands and holds in one place in the section better. That little behavior is a bit unnerving.