[Mivereous]

Button right there that lets you swap main and sub class in and out of dungeon. Would only really affect growths and stats, Class EXP, and Ki regen for Monks, but being able to swap for growths would be nice, as long as it is between the two classes you walked in with in the first place. This was suggested a while back, but I couldn't find it, or remember what became of it.

[Miller]

Yeah, I don't really see anything coming from this. So I'm all for it.

[Ranylyn]

I like it because you can try to bring your subclass up to speed a bit while watching your exp to level up and bringing the main class back around for the growths, without leaving the dungeon every single time. Complete support.

[Maikito]

It wouldn't be a bad thing, as far as I can tell.