These are interesting questions.
First, don't worry about running out of things to learn. There are infinite unexplored balisong opportunities. If you learn everything in every book, every video and every site, then you can make up your own stuff, put up your own site. In fact, if you start just playing around free-style, you'll start to come up with new stuff well before you exhaust the books, tapes, and sites that are out there.
Hangin' with Clay for a few days was a really interesting experience. Clay's style if fundamentally different than mine. This is not to say or imply that either is better than the other at all. No. They are just different. Clay is very percussive and very rhythmic. There's a ways a beat. Sometimes, it's a complex beat, but it's very musical. I'm much more flowing and smooth. Clay does a lot of flips and drop-and-catches. I to a lot more spins and twirls. Again, this is not to say that one is better than the other in any way. These differences are stylistic and a reflection of different people. The best way I can say it is: I'm a little bit country and Clay's a little bit rock-n-roll. Clay is a lot more energetic, which is probably why he breaks a lot more pins than I do. It's certainly more exciting.
Anyway, the point of all of this is that as you go along, you'll develope your own style that will be a reflection of your personality and your individual interests. That's when you'll start to really explore new ground and find all sorts of new manipulations. Better yet, that's when you'll break loose from a laundry list of established moves and start just making it up as you go, moving with the knife.
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Chuck
Balisongs -- because it don't mean a thing if it ain't got that swing!
http://www.balisongcollector.com