1-3 PLO PLO8 mix cash game at Commerce

1-3 blinds. 300 max buyin.
The game changed from PLO to PLO8 every 8 hands.
The dealer button had a "Hi" and "Lo" side that flipped over when the game changed.

Additionally, small blind is taken immediately for rake, even if there is no drop.

There were 1-2 tables running during my session.

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player reads: none really

1
2
3
4
5 hero?
6
7
8
9

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No reads on villain in hand.

40BB effective ($120) for villain.

Hero dealt: AT42 double suited

folds to hero
hero raises to $15
villain: calls in BB

(2 players - $20 in pot)
Flop: AT6 (rainbow, hero has BDFD)
villain: checks
hero: bets $15
villain: calls

(2 players - $50 in pot)
Turn: AT68 (brings hero NFD on turn)
villain: checks
hero: bets $40
villain: calls

(2 players - $130 in pot)
AT689
villain: checks
hero: checks

Hero chops pot as villain shows 23xx.

Analysis:
Preflop/Flop/Turn: This seems ok.
River: There's thin value to bet as worse hands like A25x may call a river bet.