So, I'm testing Everstones, to see if they either: 1) Advance the RNG to the next X spread like in Emerald. (X being the nature of the mom/ditto) or 2) Change the target spread to X.
So, if the Everstone fails, they should have a PID matching this:
396413DD
If it works, it should be the next Adamant spread, probably.
So, my three eggs:
Sassy - 00001‰ñ–Ú,396413DD,‚Ȃ܂¢‚« ,2,221
Modest - 00002‰ñ–Ú,DE09AA13,‚Ђ©‚¦‚ß ,2,019
Adamant - 00010‰ñ–Ú,E8DCEFED,‚¢‚¶‚Á‚Ï‚è,2,237
Conclusion - Er, hatching/recieving an egg advances the RNG by one.
Confirmed. Everstone in Platinum is the same as Emerald Synchronizing, as in, it advances the RNG to the next spread that corresponds to the Pokemon holding the Everstone's natures.