I think it's notable that the landings for currency must be done in the specific a/c. Likewise, It is unique to the MU to leave t/o flaps out OEI, and immediate full roll trim into the running engine. The a/p upgrade is merely an upgrade, though a needed one.
Short body or Long? needs some familiarity as well. I have always liked this a/c, it's a good lookin' all round hot rod. Haven't flown it. How do you like it?