Wasn't it said that the 2 bad IV'd parents can be bread and create an egg that has perfect of IV's and Nature?
I mean, that's what the Shiny egg method is for, right? You can take 2 parents with bad IV's and turn something good out of it.
Assuming 2 parents have sub 30 IVs (if you consider that bad), the best I've seen is 31/31/A/31/A/31 or something like that, so 4 31s with two "bad" IVs, plus whatever nature/gender/shinyness/ability you want.
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MSC-copy and paste that particular seed in the "Seed to Time" Button and fiddle with the year till you get a delay you can hit. Unless you're comfortable with hitting high delays, you actually may or may not be able to use that seed.