Do payouts from slushpool come from a recently-mined block? I'm wondering if this could be used to get coins guaranteed to be from after a fork, to mix with the rest of my wallet for replay protection.
Partially answering my own question: at least in the payout I got today, one of the inputs was from newly-generated coin from the same block. So I guess the answer is yes, though I don't know if this behavior is guaranteed.