[beenben]

since BB is passive, he'll probably call or fold; BB both have you double covered; your m is around 13; if you call, check-fold you're still above 10M, but you'll be out of position post-flop. CO stealing 1.5-2x an orbit is pretty high.

I think you can push here and hope that your image buys you the 3k pot and ups your M to 16, or that if you get called, you've got two overs or the better ace; but you could also call and see the flop- check fold anything other than two spades or an ace (or T if it's top card), if you've got your ace, your spades or your TPTK, check-raise all-in.

I think I like the first option better- capitalize on your image and get your M up.