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Comment by TylerE

1 day ago

Your GP said, and I quote, "The secret sauce of Lamy and Faber Castell is, their lower and higher end pens use the same feeds and nibs".

That is plainly incorrect.

In Lamy, except 2000, all nibs are replaceable with each other, incl. Emporium. Again in Lamy, except CP-1 and 2000, all feeds are replaceable with each other, incl. Emporium.

In Faber Castell, sans Grip 2011, all pens use the same nib and feed, incl Loom, Ambition, E-Motion, Neo Slim and others. Graf von Faber Castell uses same feeds with Faber Castell pens. Steel GvFC nibs on differ in stamping and maybe have tighter quality control, but interchangeable with standard FC pens. GvFC gold nibs are interchangeable again with pens using the same feeds, except some limited pens with bigger nibs.

Parker also uses the same nibs and very similar feeds inside the family. Waterman and Parker are under the same umbrella and only has cosmetic differences in their nibs and feeds, along almost all the pens.

Faber Castell Grip 2011 uses exactly the same feed and nib with Kaweco Perkeo. Kaweco's other pens, sans Original 250 all use the same nibs and feeds. Only feed housing is different between plastic and metal models, metal models having screw-on feed housings while plastic models have slip on versions.

Some other manufacturers like Franklin Christoph and Esterbrook use Schmidt #6 system with screw on nib units with custom stamping, so their nibs are interchangeable with any Schmidt #6 unit. One of my such pens have a custom grind called dentist (a reverse architect, basically) ground from a bog standard Schmidt #6.

Lamy 2000, Scheaffer Inlaid/Imperial, Parker Duofold, Montblanc are outliers in the pen world with their bespoke nibs and feeds. Nibs and feeds are very optimized over the years, and big manufacturers prefer to build their different pens on the same proven platforms, because these parts are hard, slow and expensive to optimize further when you hit the sweet spot. Also, precision machinery is expensive. So when you optimize, you exploit that platform.