I did, and the answer was Ace-x. He was big stack early because he played crap cards and got idiots to go all in against him. I saw him show down an ace with a 6 kicker on one hand, and middle pair on another.

His UTG limp further said to me something like Ace-8, Ace-9. It wouldnt make sense that he limped with 76o and called 3xBB more with it OOP. But he did :P

Only thing I was worried about was Ace-6, Ace-7, and by the turn I was thinking about how I was going to get all my chips in.