[Thebram]

Is the 'fish' tricky enough to raise the flop for a free card?
If so, then I dont really like trying for a c/r on the turn.

I understand that you dont want to push out UTG+1 on the flop with a 3-bet, but the net is probably the same.
If you raise and he folds, then you get one more sb from the button. By not raising you got one more sb from UTG+1.

Also, he's shown some interest by calling once, many 1/2 players wont fold here just because its 2 SB back to him. Folding to your turn bet with the button still to act behind him is much easier.