I like the idea of smooth calling when it's heads up, but 3 way, now you have two hands to out flop, and the call station will give better odds to draw for BB.
maybe you can get some more value, but you give up equity from pre flop by keeping it 3 way and holding off putting in more $ for the flop and turn.
that's what I mean by 4betting makes it more simple here, but I don't think it always is the best move.