What sort of period are you thinking of?
You do know that the Baybus now only earns 140 TP, so Babybus is probably more hassle than it's worth, and you have the added disadvantage of being routed in I on the AA transcon (a better hard product than the first class routes on BOS-LAX or BOS-PHL, but fewer tier points and if you wanted an easy life you'd just route via DFW or LAX and skip the east coast in the first place!)