Sorry about the crap audio--my mic decided to go on the fritz today, I'm afraid :-P Here's a couple interesting ideas that came out of a brain decompression with Alien Jon at Spin Summit this past week in Colorado. I've been trying to sort out the difference between inversions, introversions, and their various brethren, but Jon suggested I instead focus on the cross points generated by different combinations of moving the poi between the arms. It resulted in some pretty nifty shapes, so give this one a whirl.