Set on flop facing c/r

I don't know how to figure those odds. I guess it comes down to how loose a table is... there's no number that defines this in a way that can be interpreted as odds, you just have to use judgement based on previous action. I can call hands like 23s, 42s etc on the bb to a reasonable raise if there's a good chance the pot might get large. How large is a number I tend to pluck out of thin air. How fishy are the people in the pot? How big are their stacks? How big is ours? If I've seen the raiser fail to let go of JJ to massive aggression on a ten high flop, that's reason to believe the pot could get huge. Same again if I've seen one of the limpers limp/call KQ then stack off an a K-high flop. This is implied odds.

I suppose you could open up stove and mash in 23s against a random four-handed range, I've picked any pair/any broadway for the other three just to get a vague figure. It's taking stove a long time, but it's looking like 19% equity for our hand against this range; if we can give one of the others a range of just any pair we're down to around 15%, so let's work with that as a base figure for our equity... 15%, or one in seven (ish)... since we're paying 30c for what we hope/expect to be a $1 pot, we're paying twice as much as we should, which seems to mean to me that when we hit, we want the pot to get twice as big as it is on the flop for us to show a profit. This could be very flawed thinking, problem is our equity includes the times that 23 beats AK, 22 and QK on a 3JT5T board... do we really think we're taking that pot down? I think we're folding the flop. Taking this into account, we probably need the pot to get around 2.5x the flop size to make up the odds, maybe bigger. That's not that tough four handed against a load of fish who can't fold top pair or a draw, but it's a lot more difficult against decent players who bet/fold KQ on a 22Q flop.

Yeah I think I need to see some stacking off on the flop with top pair to make the call with 23s on the bb to a x4 raise. I rarely play 23s to a raise, but it's not always a fold.