[smsam]

With pp like 66, 77, 99, TT he should either fold or raise on the turn otherwise he has to call you on the river too right? it seems unlikely that someone is going to call for value if he puts you on spades or air on two streets then try to bet for value on a board that does not seem to have improved the part of your range that he already had beat (air). id check and call if i thought my opponent was capable of turning a busted draw or counterfeited two pair into a bluff or fold if hes a nit