I personally find the MP to hook more and to have less arc-y, less smooth backend. The MP does not have a sharp backend, by any means; it is not a skid/flip ball for me. The AP is just a real control ball for me, very arc-y and very smooth. In fact, I'll be re-drilling one in the near future to see if I can get more length and more snap to it.
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"None are so blind as those who will not see."