As I have been rolling around in FPAD, I've gotten pretty good about understanding the differences between XF through BB, and italics, obliques and stubs. I think I even have a pretty good handle on the varieties of flex. Today I was admiring Sailor's pens, and at one web store, they offered special Sailor nibs with some of their models and, well, my mind was blown. They had these really hooked nibs, ones that you could use on either side to have finer or broader lines, and ones that had 2 or three nibs fused together. I'm really liking the looks of the Sailor pens (having a 1911 with a music nib), but don't have a clue about where to start with the custom nibs.