+t for splitting the 4022's. Never tried it myself but have thought about it, though in a different situation, for stage taping where one instrument is really low in the mix (like a percussionist off to the side), I thought a split with mics at the sides of the stage pointing inwards could turn out nice. Anyone ever tried this?
FWIW: I have Phish Molson 99' on split 4V's(V2>AD1000?), I think it sounds pretty nice. No idea how wide the split was on this though.