Sadly, I'm not a first responder. I know the market is pretty thin in my price range, and that users CAN be found pretty close to what I'm willing to spend, it's just a matter of where. Found a few knife swap sub forums but many of the ads are old, I'll keep an eye on them though as those look like the best bet so far. On a side note, the 51 looks very nice and I like the pocket clip, but it doesn't really excite me. This is primarily going to be for flipping, but if there's a pocket clip I may try it out for carry as well, depending on weight.
I did break down and picked up the Kimura XI at bladehq.com because I really like the blade shape, it should be en route either today or Monday. I'll write up an opinion once I've had it for a bit, but I'm already trying to figure out how to fit some scales to it.
Like any "itch", I'm still on the look out for something else to play with as well since my Bear & Sons is MIA after my last move. Currently looking at the knives at balisong.com. As I understand it, Armand Palacio had something to do with them, and they do sell Pandayan's from time to time, but I'm more curious about the traditional designs that are more value priced. They look very nice, although heavy, and the pins look a little on the small side to me. Anyone have some insight on them?