With the barrels out of the gun, have tried inserting a round into each barrel to see if it will fit. I don't know much about .41AE but I would imagine that you would not be able to put it into the chamber of the 9mm barrel. It would also seem that the case head of the .41 would not fit into the recess on the bolt face of the 9mm bolt.
I have no idea WTF I was thinking when I went there. Being super hungry is the culinary equivalent of drunk and horny at last call. You'll take just about anything, knowing you'll regret it later...and still not giving a shit.