Yeah, I don't see any benefit to using the 7006 with ZPC but I do see some potential downsides.
I can see using an aggressive product on a mild pad, but not a mild product on an aggressive pad, that would be a worst-of-both-worlds situation. The
Meg's 7006 will sometimes leave micromarring so you'll quite possibly have to follow up with something milder anyhow, and the ZPC will only cut as much as it's gonna cut no matter what pad you apply it with.