[PrayingMantis]

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He says that the more aggressive the opponent is, the more wary you should be about their check on the flop here.

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Yes, clearly, you are always looking for a DIFFERENCE in a behaviour. An aggressive player who suddenly checks should make you feel uncomfortable in a sense.

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but a predictable weak tighty guy, you should probably be less wary of their check because they are checking flops they miss.

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ZJ probably had enough of a read to realize that a check in this situation by that opponent wasn't a bad sign. Most avarage players will tend to check a missed flop in such a spot.

I don't think this particular spot is actually very interesting. It looks like a routine play. It would have been different had villain bet into ZJ, and if ZJ saw him as an aggressive opponent. These are toughish spots where you have to decide whether your made hand is good enough, and what should you do with it (call down, raise, fold etc). It also depends of course on the calling tendencies of your opponent. Are they able to lay down a marginal hand if YOU represent a better hand (even if you don't have it)? Of course, it has much to do with their perception of your play .

Most of it has more to do with MTTs than with SNGs, unless you're playing more against regulrs in higher levels.