i feel like this post-flop edge can easily be overestimated.

just curious - you said SB is a whale. what makes him a whale? do you have some examples? are the first few examples that pop into your head pre-flop or post-flop things?

In general, I agree

Both pre and post. Plays too many hands, limps a ton, cold calls a ton pre. Post flop - chases draws w/o odds, lol slowplays etc' etc'.

ok, fair enough. if youve definitely seen the guy both chase draws without proper odds (considering implied as well) and slowplay too much, then yes, you truly have a postflop edge.

lots of guys marked as "fish" actually play ok postflop ... you know, they refuse to fold big pots on flop/turn, but this aint that bad in huge pots. ...

sounds like ur villain is worse than this.

so call away with 97o pre imo.