I have to admit that I will be disappointed if MS does not commit, but there is another angle that I haven't seen mentioned (at least not all together.)
Even if we got a verbal from MS, USC won't back off recruiting him. He's in their backyard for pete's sake (no pun - well, yeah pun intended). The worse scenario I can imagine. We get a verbal from MS, RS commits to UM, then MS backs out of the commitment later. We miss out on both guys, one ends up in scUM north the other USCum west.
In a way, it'd be almost better to get the bad news now then February.
T