[Stefan_K]

I play it the same, the questionbal spots are preflop and river.
Preflop i think a 3bet is often profitbal but a read is good against 27/9 'cos thier opening standards can really differ.
River, depends on how he would play a missed flushdraw or some other draw. I would often talk me in that he can have the draw and call this river.

note that if he is as passive as he's aggresionfactor shows you can def fold the river