I usually don't slow play AA but, decided to do that this time. I did put in the first raise and felt comfortable slow playing because of the dry flop.I was up against a pretty aggressive bettor and wanted to let him hang himself out to dry. When the final spade hit I went all Hollywood and took a while to go all in for the rest of my stack. The villain thought for a long time and told me he folded because I had reached for raising chips on the turn but backed off. To him that was a tell on my part and he made a good fold . How would you assess my play ?