This is a hand from Maniac.  Hero defends BB with AJs, and SPR of a little more than 2-1; (67-28).  Villain had raised from MP.

We see a flop of Qs8s2d, giving us the nut flush draw.  PIO wouldn’t lead here, but I did force us to check.  Now Villain bets 1/3 of the pot.  

It seemed to me this was either a call or a jam.  PIO does in fact prefer call with this exact hand, though it does check raise with A9s and below.  What is most interesting to me is the sizing it chooses.  I gave it a 3x (about the original pot size) or a Jam.  Given those 2 raise sizes, it almost always goes small.  This is counter intuitive to me, and not the way most people play.  I wondered, what it hands it was check raising with, that it would then fold if we were jammed on…

It turns out that PIO balances its range with a lot of back door flush draws, with the Ace of spades, and its weaker Ax diamonds draws (it flats AJ/ATdd to the first bet).

If we do check raise small, and get called, it jams turn with a flush draw (our actual hand, or when we pick up the BDFD) and gives up on blank turns with AsX…