In general I agree w/Renton...reraise the first two flops to see where you're at. Flop 3 is about the worst possible and much too dangerous to mess with - flush, 2pr, straight, trips are all very possible. Flop 4 is mostly a fold but I might call if the guy is very laggy and/or he's been stealing lots of pots or betting w/less than TP. Flop 5 is mostly a fold, you have to fold a non-A/Q turn anyway as he probably bets it.