I'm flatting pre, the value of keeping the fish in is pretty big. We can lead good flops for us and expect our standard opponents here to just play face-up, and get value from the fish.

Also I'm not comfortable getting this in nor folding it if BTN 4bets here. Sure a case can be made that BTN isn't good enough to have a 4b bluffing range in this spot, but he's unknown so its tough if he does.

I just think flatting makes us do less mistakes while keeping the fish in which is huuuge.