50-100 Stop and Go

[PokerPrince]

4-way 50-100 game. Fairly decent opponents. Player utg opens with a raise, folded to me in BB and I hold A [img]/images/graemlins/spade.gif[/img]J [img]/images/graemlins/heart.gif[/img]. I reraise and it's headsup to the flop.

Flop-9 [img]/images/graemlins/spade.gif[/img]4 [img]/images/graemlins/club.gif[/img]3 [img]/images/graemlins/diamond.gif[/img]

I bet, he calls.

Turn-9 [img]/images/graemlins/spade.gif[/img]4 [img]/images/graemlins/club.gif[/img]3 [img]/images/graemlins/diamond.gif[/img]A [img]/images/graemlins/club.gif[/img]

I check, he bets, I call.

River-9 [img]/images/graemlins/spade.gif[/img]4 [img]/images/graemlins/club.gif[/img]3 [img]/images/graemlins/diamond.gif[/img]A [img]/images/graemlins/club.gif[/img]9 [img]/images/graemlins/heart.gif[/img]

I bet, he thinks for a few seconds and calls.

My reasoning was that if I checked the turn when the Ace scarecard hits, I might induce a bluff from a hand that would normally just muck to a bet. Also, if I'm behind to a bigger Ace, I save money. The board wasn't too drawtastic so I thought this might be an ok play. Betting the river might get a curiosity call from a worse hand that would more than likely check it through. Thoughts on this play? Too fancy? Was the most money extracted? Thanks.

F.Y.I.- opponent held 6 [img]/images/graemlins/spade.gif[/img]6 [img]/images/graemlins/club.gif[/img].