[cpk]

Perhaps you can argue that the extra dead money calls for a reduction of standards. I think you still have to think in terms of kicker domination, though--A8s is just statistically too weak to isolate open-raisers with, especially if you don't know them to be loose raisers.

Under normal circumstances, I would probably call with A9s and three-bet with AQs. You don't really want to blast people out with a big suited ace--this is a hand that wants to invite people into the pot. But the raise with AQs/AKs is also a raise for value.

As played, I argue as well for a bet for value on the river. I mean, you don't know that anyone is extremely weak-tight yet.