A9 OOP calldown on AJ627 board against LAG BTN opener

[Jurrr]

5-handed.

Hero is BB with A[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] and covers.

BTN is 31/22/5.2(1.8k) with 47% won when saw flop and 37% att to steal. He has 94BB.

My read is that he is floaty, bluffy, super aggro, and only has the bet pot button; no other bet sizes used.

Will pot any flop whether OOP or IP and whether PFR or cold-caller. 36/29 on the BTN.

I've seen him make a retarded bluff-shove on the river against another LAGtard with complete air (which wasn't even a draw on the flop nor the turn).

Will call 3bets light and float and bluff in 3bet pots, especially in position. I've been experimenting with less 3betting OOP against villains like that. I usually fold this as I'm supernitty OOP but figured it is way ahead of his opening range (probably a mistake though).

2 folds, BTN raises to 3.5BB, SB folds, Hero calls.

Flop J[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/spade.gif[/img] (7.5BB)

Hero checks, BTN bets 7.5BB, Hero calls.

Turn 2[img]/images/graemlins/heart.gif[/img] (22.5BB)

Hero checks, BTN bets 22.5BB, Hero calls.

River 7[img]/images/graemlins/heart.gif[/img] (67.5BB)

Hero checks, BTN shoves for 60.5BB, Hero calls.

Basically I decided to call him down on the flop and went ahead with my plan (tanking on every street to feign weakness). If you fold, which street do you fold at?