Reads:
Villain is 54/38 wit SB rfi of 60%.
Barrels 38/100(2)

Thought process:
F: An okay defend I believe
T: We pickup a fd to go along our oesd. So we call. I don't think raising is an option w/o any significant blockers?
R: River is a brick. And we are very low in our range. Can I bluff here profitably? I would have rare boat combos here like A7 or a very few 44. I'd probably fold 97 and raise 77 and 99 ott.

Questions/Wonderings:
1. How to decide if bluff otr is good?
2. Pairing river cards intuitively feel bad for bluffing, but that should not be the case if we can rep hands viably, right?