Live 20/40NL hand, DEEP

[tsarast]

20/40NL live game, at commerce. Villain's playing 20k, I'm playing 16k. Villain has already been felted by Bobby Hoff in the game for a 30k pot, and is stuck I'd say 10-20k, and does not seem to be playing as well as earlier in the session. Although I think he's a pro, and he seems to have a good understanding of the game (definitely played TAGish at first, but I think he's been playing more pots since the felting so probably LAG now, but nothing too out of line). Anyways...
He live straddles, I'm UTG with AA, i make it 280, folded to him, he calls. Flop JT7 rainbow, he checks I check. (Comments on flop check welcomed)
Turn: Ac bringing two clubs. He bets 300, I make it 1300, he makes it 6300...