The answer lies in where you think you have a skills advantage (if any) over your opponent. Is this preflop or postflop? Since this is NL10, I don't want to gamble much (i.e.4-bet) versus a bad player. If it were NL50 I'd definitely think differently. And yes, then using your ragged A as a blocker (i. e. 4-bet) is fine. (Like I said above, don't worry too much about domination if you choose to call. Potential domination is much worse OOP.) Then again, if we are deeper, say 150+ bb, then it is back in calling mode, precisely because we have POSITION.
I haven't played with fixed ranges for some time now. I do what feels right at the moment. This includes some very unhealthy 3-betting that no sound fixed range contains. I also 3-bet bluff less OOP, and call and check more on BB than most ranges recommend. I have often written here that I think this preflop (near-) hysteria is a waste of time, and that the postflop game should be the main focus all through the micros. I stand by that. It is also damned hard to figure out good ranges, because what is "right" with 100 bb may be wrong with 90 or 115 bb, and downright stupid with 50 or 200 bb. Too much work for me.
So I am the wrong person to ask about preflop strategy. But yes, the hands you mention (esp A9s-A6s) are definitely among the first candidates, but so are KQo and similar, and there are plenty of those.
As a natural corollary to the preceding paragraph is that I shouldn't ever post my opinion on preflop:f_biggrin: