At 100 deep, I'm all-in, bvb against a fish who could have lots of stuff we're ahead of - worse two pair, Kx, Tx. I don't think fish lead that flop with a straight draw, nor 3bet the turn with most fd's (unless it's a Kx/Tx/QJ fd). KT and a set (awfully small flop bet for a flopped set, and I don't see him leading the flop with 77) are the hands I'm most worried about, but I'm expecting to see Kx pretty frequently here.
I kinda suck at 150+ deep, but I'm still finding it difficult to fold. Lower variance, though, and it's not like you're committed to this pot, so looking forward to other responses.