[akvsaq]

Who is in the SB? If he's a good player, maybe he decided to raise the turn to thin the field after noticing MP1 re-raise on the flop. This is a possibility. If so, I would contemplate a 3B on the turn. I would have capped preflop but I can also understand the smooth call b/c you will have good relative position. Also, you decided to raise the flop, people will be getting odds to call in this monster pot, maybe you should wait and attempt a raise on the turn. In any case, unless you have a strong read, I disagree with your fold. You could very well have the best hand and folding would be a serious mistake in a pot this huge. I think you're pretty much committed to a showdown.