[XXXNoahXXX]

Laying down your hand in either of those spots in gonna be damn near impossible unless you have played a lot of hands with the opponent and know that they are a rock. I mean any preflop action from 55 could just as easily be 44-99, so putting him on 55 when the flop is Q5Q is very hard indeed. He could just be bluffing at the Q or not giving you credit for it with a mid PP. Limit is obviously easier, you can just slow it down if you smell a rat. NL, If I bet the flop and get raised, I'm probably pushing all-in. AK on a flop of KK6, your more likely to get all-in with KQ or KJ, and take down some big pots. If you in the opposite boat, I think that is where you can save yourself some money. If you hold KJ on a KK6 flop, I'd be far less willing to commit a big portion of my stack and I'd be playing for a smaller pot finish.