Why in the world would you think that showing 99 in this spot would keep your image good?

Ok, this is a sticky point here. So I should never raise here, and let him bluff me off my hand? You understand that if I just call, he might raise and then I won't know what to do but to fold. On the other way, I know what my next action will be, although cost some me money. I took this to the cruncher, and getting his range as AA-TT, AK-ATs, AK-ATo, KQ-KTs+, KQo, QJs in this particular flop, I have a 60% equity against this particular villain. Is not that worth a shot?

If we include the third player and the range Im putting him in (88-33, A8s-A4s, A8o-A4o), he even has more equity than the tight player: 31% vs tight's 27% vs mine's 41%. And still, Im up.

That I wasn't bluffing, I was betting an over pair to the board, that would allow me bluff in certain spots. Why would this be a mistake? If I had a wild image, probably I won't show as that will keep my reputation as it is when in reality I'm playing tight.

If you just flat the $20 and he raises behind you, then folding is obvious. Except this way it just cost you less money to get the same info. Do you think the tight player is raising behind you with high cards?

Why Not? He has done it before, he has a good image, he is the original raiser, he is c-betting here almost always, specially knowing that loose villain do that kind of thing of probe/block betting, he is an an observant guy. Even if he thinks I have the same hand as his (this is, two high cards), the positional advantage is enough to blast a reraise here.

Besides, won't we need to charge draws? Calling here is 6:1, almost anyone will call, and again, you don't know what you are facing.

I have the book on my kindle, so I don't have a page number. It's in the section: The Difficulties of Check-Calling Vulnerable Hands. The issue is that the Villain's bluffs usually have lots of equity, we have little chance to improve, the Villain usually knows exactly where he's at, we don't where we are, ...

I find it dense as well, but listening to the experts commentating on the WSOP, they're talking about the concepts from the book, so I'm making the effort to get through it.

FWIW, I would (or should) often fold overpairs higher than 99 to the flop raise that our hero made.

Consider this from the tight player's perspective holding KK.

764 flop. A fish raises and a tight ABC reraises in front. We still have a villain to act behind us. Hero?

This is a pretty bad spot. I hope we are folding this usually; this board is bad for our overpair, likely to get worse, and we can be beat by a set/straight/two pair already. Cold calling two bets turns our hand face up and it will be hard/bad for us to stack off.

It becomes even worse when we have more villains behind. I often lose money in these spots and it's something I need to work on actually.