(Jeff Abbott is a regular contributor at The Pen Addict. You can find more from Jeff online at Draft Evolution and Twitter.)
One of my favorite things to do at pen shows is to check out the Franklin Christoph booth to see what kind of new model pens they have on display. It's hard to get a good look since most of the unique stock sells out pretty quickly. Either way, if you end up purchasing a pen from the fine folks at Franklin Christoph, they offer to fill it with an ink from their own line. There's roughly a dozen colors to choose from, and I've enjoyed every one that I've tried. My most recent experiment was Terra Firma, a delightfully shade-happy red-brown ink.
Normally, I don't pay much attention to brown inks — they've never been something to catch my eye when ink shopping. This particular ink caught my eye because of the pronounced shading it exhibits. I love an ink that shades well, regardless of the color.
A few weeks later, I've determined that I like a bit more red in my inks of this color, but Terra Firma is a solid, respectable ink even if it's not my favorite color.