I think you'll be surprised about high kicks, though. When I was learning BJJ, there was a dude there teaching who told me high kicks do have a great use for grapplers, too. If you throw them, you'll keep a striker at distance and focus his energies high. It'll create teh space you want for shooting and takedowns, while he's still defending high. Plus, some BJJ guys are really bad at stand-up. Of course, that's why there's MMA (and most the BJJ guys at that school had some kind of MMA agenda, to be truthful).