[El_Hombre_Grande]

I think it could be a number of hands which you have beat, including a bluff off the Ace, a good A, and spades. A10 is obviously a possibility, but even if you did get coolered here its still just one of a number of holdings he could hold. I think you put in a big raise here. Spades will call, A solid A may call (which you should be ambivalent to, if you set the price right) and I doubt you were getting anymore from a bluff once you've decided to call. And yeah, you're going to get coolered with A10 but I think the combo of the draw the bluff at A and a good A means you are ahead in most instances.