Thanks for the feedback - it's very useful. More useful for me because I have spent a bit of time looking at the hand from both sides.

Btw, it's 10max so Hero is in MP3 - not that early a position.

So.. Villain's AT should have folded the flop rather than calling it because Hero's range is too strong vs his holdings (or his range?) - thus I should not have considered AT in his range on the turn. I can see how that shows his range as being stronger and why that should have made me slow down on the turn. I mentioned having looked at a range in the original post around that mark that left me with 30% equity or so on the turn.

And yeah, my assertion that I'd have played the flop the same with 55 doesn't really change it for this villain, as he'd still be up against two pair with his gutshot - so his call on the flop is not a great play.

At this point I'm still trying to learn which hands it is reasonably to drop from a hand range at any step in the analysis. I hope given a few thousand more of these I'll get better at it.

Any particular notes for future hands you'd take on Hero or Villain based on the full hand history?