So I've seen there's an option in online mode to ignore the effects of Eternal Seals.
How does that work? Does it reset the character's stats to how they were when they hit level 20 as a promote? If I hit 20, use an Eternal Seal, gain a few levels, then use a stat-booster like Spirit Dust, does the boost from the Spirit Dust get dropped by the handicap, or only the level-up stat gains?