A2s hits against PFR

[bnorthro]

This is kind of a tricky situation, and I'm not really sure what the best line would have been. The PFR is 34/2/0.5 over about 95 hands. He seems pretty passive. Is the preflop call horrible because the likelyhood of being dominated if/when I hit my A? This guy doesn't raise much, so it's most likely a big pocket pair or a big Ace.

Party Poker 3/6 Hold'em (6 max, 6 handed) converter

Preflop: Hero is BB with 2[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">CO raises</font>, <font color="#666666">1 fold</font>, SB calls, Hero calls.

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

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

River: (7 BB) 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, CO checks.

Final Pot: 7 BB

I hoped that the flop check/raise would let me 3 bet with a better A and I could ditch the hand. Not the best line I realize now, as I'm typing this Mr Passive just called a PFR with KK, and check/called down on an uncoordinated Q hi flop.

Do you guys typically ditch these small, suited Aces from the blinds when getting ok odds?