- Call all-in
A#11: You might think that calling is correct because of the pot odds you're being offered. After the MP player shoves, the pot is up to ~$1600, and it will cost you $750 to make the call. You're getting about 2.1:1 on your money. Not bad when you're holding an overpair to a fairly dry flop. You have to be right only about 33% of the time to break even.
Unfortunately, when you put the "solid tight-aggressive" MP player on a range, and then adjust it relative to his action on the flop, I think you have to put him on QQ+ and possibly 88. (I don't think semi-bluffing or bluffing is in his range here, given your show of strength, your perceived pot commitment, and the multi-way nature of the hand). Anyway, if we run this range against our cowboys in pokerstove, we see that we're way behind at something like 12% vs. 88%. The price is simply too high to continue. Ergo, fold.
All-in for now...