I'm pretty sure I heard from a reliable source that the PA2XPRO (I'm sue the 3 is the same) does not include the polyphony in the style tracks. Only L, R1, R2, R3.
But That's 2nd hand info
Anyways I'vs had a lot going on and never heard a dropped note on my PA2. But that doen't mean it hasn't happened.
Lee S.