[Acevader]

You've made a fairly substantial 6bb raise pre-flop. As I see it your reasoning for that is surely to boost the pot in instances that you do hit a set - as playing 66 unimproved is always going to be tough here - or just to take it preflop. I like this strategy; imho you should make either a 'sweetener' raise with 66 here that will absolutely be called (and then primarily mine) or you should raise more substantially, as you did, to really cut down villains odds.

Your large bet has worked out perfectly as you have now hit your set on a board that likely hits villain in some way or another. He probably doesn't expect you'll raise this much with AA-QQ so it looks like you have a PP preflop, AK or maybe AQ.

You've already thickened the pot preflop so I think its now time to re-affirm for villain that you're not overly happy with that flop by betting a little less than usual (if he was a great thinking player I'd do the opposite and bet more than usual). I'd say $12-15, which still prices him off KJ/K10, but will is likely to be called by such hands and any other hand villain has hit. If he raises, great - if not then you have a new decision on the turn. Do you complete the weakness with a check - but potentially miss value - or make another play. It'll depend often on the player, turn card, history, etc.

I think your goal here is to bet a little less than usual for two reasons:

1. He'll likely call down lighter than he would if you came out all guns blazing so you get some value.
2. He might conclude you don't have much of anything and value-raise lighter than he otherwise should have.

Remember if villain has two-pair or better you'll get him money (or he'll get yours) almost no matter what happens. Make sure in this instance you get value from a far wider range of hands.