Still struggling with Ax

[PygmyHero]

Button is tight and actually decent - I know he will fold to my PFR without a real hand, in which case he will 3 bet me and I'll know I'm behind. The SB and BB are both huge CS's. The BB also has made some very unusual raises and donk-bets (PFR UTG with 98o then donk betting a 3 bettor with bottom pair on a K high flop, check raising on a draw HU, etc.).

Paradise Poker 1/2 Hold'em (5 handed) FTR converter on zerodivide.cx

Preflop: Hero is MP with 8[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, SB calls, BB calls.

Flop: (6 SB) K[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">SB raises</font>, BB folds, Hero calls.

Turn: (5 BB) Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>, Hero calls.

River: (7 BB) 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

Final Pot: 7 BB