katerchenPen arrived yesterday, and I tested it with a chinese generic converter that came in a pen I bought form xfountain pens. It works like a charm!
Pen is nice and solid, and it write great with Pelikan ink.
katerchenK, I started looking at the length of chinese converters I had.
They are all over the place, with lengths between 64 and 73mm
The shorter ones fit fine, and the ones above 68mm hit a spring at the top of the barrel
Diameter-wise there is a few that are perfect, and some that are just too tight.
It is a hit or miss
http://www.fountainpennetwork.com/forum/topic/310579-faber-castell-loom-converter/