not sure how much interest this will get but here goes.
have been playing with the original cpuminer since zcoin's release; and seem to have found a slight edge last night.
performance gains are in the realm of about 25-50%, earning about 0.5 XZC from one quad cpu VPS overnight (9-10hr).
please note that the reported hash below is wildly incorrect, it should be around 20H/s or slightly higher from a standard 10H/s.

as some of you know, i'd been toying with a GPU miner since launch as well; with some partial luck; probably more to ocminer's annoyance with the invalid shares he keeps seeing on his pool from me

going to give it another go night and will report how i go.
baz
(the black spaces are just some debug information ive removed)