I admit to relying on luck to get a Dustox. I figured it would take just as long to figure what the heck the PID meant as get lucky with the RNG. I've avoided all other breeding projects with those sorts of pokes since.
? Oh, well, nothing has changed as far as we know. Males still come out Ms and Females still come out Fs. Same for Volb/Illum. As far as we know, gender (and PIDs in general) are inherited the same way as 4th Gen, with the exception that Males can use Everstones now too, but that may not have anything to do with raising the chance the offspring pop out male, just natures.