Well, there is the Purple Ice Ex which, if memory serves, is particle pearl. That ball is either all of nothing, however. I had one, but I didn't care for it that much. I just couldn't find enough conditions to use it on. When dull, the damn thing would hook on Ice, polished it would go long and get squirty. I don't know, that ball just seemed to work well when nothing else did. On the flip side, that ball wouldn't work on a lot of shots, too. I would have to agree with Chinaman, as far as PP's go. Storm seems to have the best offerings. I haven't seen any negative comments about the X-Ace yet, and Himmler sure made it look good. Although I love Visionary, if you're looking for a PP, Storm may be the way to go, for now anyhow.
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I can't bowl 300, but I can bench 310 : )