I favor a check raise on the flop. You definitely have concealed the strength of your hand by just calling from the SB. I think that's one major benefit of just calling or checking from the blinds with a hand like this. Because it is likely that someone limped with Ax suited and will probably bet the flop, I would definitely check raise the flop,and then lead the turn. If Villain calls both, I check/call river. I think you will make money off of ATo A8s and other hands like that.