Reply #5: good idea.

[Tuesday Afternoon]

found this:

Occasionally a new nib will have a burr or be a bit scratchy and need a little sharpening. A wipe with a crocus cloth is usually all that's needed. Crocus cloth is an iron oxide (jewelers rouge, carborundum) coated cloth, (it looks like fine black sandpaper) 1200 grit extremely fine abrasive that is used for polishing metal surfaces. I use a fine sharpening stone very sparingly. Put a drop of water on the stone, the nib should be placed bottom side down at a slight angle and run gently in a circular motion with little or no pressure. Luce Zolna suggests "I have been using a acrylic nail emery board style buffer. It has 4 different pads from a rough surface all the way to a polishing pad. They are glued to a foam subsurface which is gives it stability. It is handy to keep in your toolbox and it works well. You will find it in a drug store or a beauty supply house." Mine is called a Mini 4 Way Buffer, I gave it a try and it really does work.

http://artid.com/members/calligraphy/blog/post/2136-breaking-in-a-new-nib