AKs in the SB with NFD against a whale

Bet/gii on the flop and shove the turn.

He's only got 2x pot back, check-raise and gii.

I would bet out, because I don't want him to check it back.

Bet/gii. Would be terrible if he checks back.

Cr all in. It's not bad if he checks back. Dunno why anyone thinks so.

Our read is he gets out of line and this is a flop we would check fold a lot. So check.

Grunch:

PRE - Overall I think this is fine. If V is a whale we can probably go somewhat larger with our raise size, but otherwise it all looks standard.

FLOP - my default line when HU and OOP as the PFR is to check range. I'll deviate when there's a reason to, but I don't see much of one here.

If we check, maybe he checks back and we can make a delayed c-bet on turn. Or maybe we start to turn our hand into a bluff and go for a check raise if he bets small. We can check-call if he bets large.

I'd guess we're not folding if we check and he jams. Seems like a good spot to check and see what he does.

Guessing it's because H's equity drops a bunch on a blank turn, plus a lot of Vs will bet turn big into H on a checked-through flop with both value and air. They conversely won't bet out on the turn if H bets flop, allowing H to x-back turn if desired, and realize their equity.

I have no idea how much each of the above hypotheses are true, but I think that's the logic.

Edit: All that said, we're told they're a crazy bluffer, H has decent draws, so H ain't folding regardless.