high limit TD hand

[2005]

Hi guys, I was in Vegas for the WPT champ and there was a great 200/400 TD game going. I got a friend to take 1/2 of me in the game and sat in. SB in this hand is very tricky, reads well, but plays waayyyyyy too many hands(3-bets with bad 3 card draws, overplays his hands after the draw) and is one of the 2 soft spots in the game. folded to me on the button, I open with 267, he 3-bets, I 4-bet, he 5-bets, I call. he draws 1, I draw 2. He bets, I call after bricking. he raps pat, I draw 2 and catch a 3. He bets I call(raise here?). he raps pat again, I draw 1 and make #2. He checks, I bet, he raises. Is this an auto 3-bet or should I just call so as not to open myself up to the 4 bet?