[Saint_D]

I don't give nearly as much credit to the backdoor flushes as I would one that had 2 cards on the flop.

I can see a lot of players betting this river as a bluff. The A is a double scare card. I think your raise is probably good if you have a read. If this guy is super passive then I just call his bet.

I do find the cap to be questionable. I would just call his 3-bet. This is a classic better hands won't fold and weaker hands won't call sort of situation I think.

I expect to see the Q-high flush or the wheel a lot here. You might also see another set or the last A. I think you are good here enough to call the 3-bet against a mildy tricky person. Fold to a passive rock unless you need to call for your sanity.

-D