[GLKST526]

I know we've moved past the flop at this point, but I'd be more inclined the bet the flop since a) you have flopped sets with both your pocket pairs and b) there is a flush and straight draw out (flush obv much more likely). That means that there are many cards to come that could beat the hand you currently hold, and you have less outs to redraw since you are holding two of the outs in the 4s. Because of this, I'd bet aggressively on the flop regardless.

Checking is probably best (what are the blinds again? I could figure it out using math but I'm lazy). You basically have to decide if you are willing to commit with this hand, because even if you call a half pot bet on the turn, you are probably going to have to commit the rest of it on the river, since the pot will contain something like 4 times your stack if you call a half PSB on the turn. So I think any reasonable bet you call on the turn commits you, but I'm not very experienced and PLO8 so I could be wrong