Hi.
Preflop: UTG+1 looks like a MSS reg, I don't know about CO. If CO is a fish I prefer to squeeze here and stack off vs UTG+1. I would hope that UTG+1 folds and CO calls with a wide range of hands. If CO is a reg then flatting here is fine, though squeezing is also fine when UTG+1 is opening 20%+ from this position.
Flop: I think leading here is kind of close. With a fish in the hand it would be significantly better. I don't mind c/c here. You need to plan for your hand at this point in time.
Turn: We get a pretty ugly turn card which improves 89/4X/66. I don't think we have that much playability here, I think c/f is probably the better play especially if u are not sure whether he will fire river again with his busted flush draws. Would you have intended to c/c River again?
Thanks.