I have given this some more thought, and though I could not find the original thread I figured I would post a new one.

I?ve changed my mind. (Remember the woman?s prerogative thing). I don?t think it?s a good idea to mix and match, or characters have a great rapport within each group, and the groups tend to be rather well balanced between casters, fighters, and healers. I like keeping the friendships et cetera as they are, and think it might get a bit confusing if we switch out constantly as to who knows who and how they react to each other.

Mind you this is just my opinion from a RP point of view.