Playing a 10 man satty among friends for a seat into the DTD deepstack, where there are 2 seats available. 3 players left and the following hand occurs:
All stacks relatively equal, with 150000 chips in play. blinds 1500/3000/300. Button limps. this player is very unpredictable, able to make all in bluffs with air, able to slow play monsters, and very capable of mixing these styles at will, just a very tricky oppo, who I would say wouldn't really understand the dynamic of this situation. Small blind makes up. Very standard rock who understands the maths of the game, not really capable of making moves, although definately understands the situational dynamic.
I look down at

and am happy to take a cheap flop of

Sb checks, what now?