Sorry, I don't have the time to offer a proper breakdown of the hand as I promised, but I will at least try to give you a fair response as the only advice I've offered so far is "Shove. Anything else is a mistake." and "You're wrong Stocky". But
@Shaggy, you're on the right track with what I'm reading from you in this thread.
In the hand, no one has given you any reason to assume they have AK. Sure, it's possible, but it's going to be distributed less often than normal given the action. From what you've described about the game, the villains appear to have a very wide range here. I'd be more scared of running into 89 than I would AK. If I'm playing this hand, the most important thing for me to protect against is a combo draw like the K high flush draw, or flush draw with an 8,9, or A in it. In the actual hand, villain had a Kc6c.
If you raise it to $75 on the flop, you're making it correct for A LOT of hands to call you. This is why I said it's a mistake. A raise to $75 means you're calling the $20, and putting in $55 more. So, your first opponent is staring at a $172 pot (97+75) that costs $55 to call, and if he calls, the second opponent is getting $227 for $55. That's over 3:1 for the first caller, and over 4:1 for the second. These are massive odds. You only need 20% equity if you're getting 4 to 1 on your money to break even, and 25% equity if your'e getting 3:1. This means that even A8s with a double gutshot and a backdoor flush draw would have correct odds to call all in at that price against JJ in this spot. That's not what you want to do. You want to make them pay MORE for their draws than those draws are worth. Obviously there's more to the analysis than just cards being face up, hence I said I don't have time for the full breakdown (we would need to discuss your full shoving range, and count combos for your possible holdings as well as theirs, then use bayesian statistics and probability theory to break it all down), but I think you get the point. You should be thinking about the draw you need to protect against, and calculate the proper bet size against that hand.
The hands I'd be most worried about are K high flush draw, AcQc, Ac8c, or any flush draw with a 9 in it. These all have about the same equity as each other (all of which if I had them, I'd be jamming this pot with - among other hands). So, let's figure out how much we need to raise to in order for a King hi flush draw (or any of these) to be making a mistake by calling our raise. Obv there are other hands to worry about (AK or QQ, but if someone turns up with those hands, you're getting felted regardless. Those situations suck, but you'll be on the receiving end eventually. Those situations will even out in the long run.)
First, we calculate our equity against these hands. It's about 60% to their 40% (60.6% to 39.4% and 61/39). So, how much do we need to raise in order for someone with 40% equity to be making a mistake? The math is simple. If someone is getting 3 to 2 on their money, then they only need 40% to break even. So, how much do you need to raise it to in order for them to be getting 3 to 2 on their money? First, you must call the $20 bet before you raise. Once we call the $20, the pot is at $117. So, if we raise 2x the pot, then we are raising it to $254 ($20 call plus 2x117 = 254). Now, look from the villain's perspective. They now have to call $234 more to win $351 (your 234 raise + the 117 in the pot). This is a 3:2 payoff. The magic number we're looking for. So, raising it to $254 is a breakeven proposition for any of those hands with 40% equity to call. Which means, you need to raise it to MORE than this if you want them to make a mistake by calling you. However, you don't even have $254 in your stack, and neither does one of the other callers (I believe you said he only had $150 or something to begin with?). The good player is the only one that has you covered. So, like I said, you're best move here is to shove. You're not even deep enough to protect your hand correctly. Raising it to just $75 is not just a mistake, it's a fairly big leak. You're not just pricing people in, you're giving them GREAT odds on any draw. This is one of the most common leaks that amateurs have. They think "I raised it HUGE. I made it $75 and these donkeys called me and sucked out! I'm so unlucky!" Not realizing that they are the ones making the mistake, not the callers. Note, that playing this way also gets you paid off when you have big hands (You should be shoving quite a few hands here by the way. Not just JJ). Players will always remember when you shoved on a semi-bluff, or when you just had two pair, or a set, and not the nuts. You'll get paid off bigtime next time you're holding the AK instead of the JJ. Also worth pointing out is that this is a CASH GAME strategy, NOT a tournament strategy. There's a huge difference when losing means you just dig back into your pocket and rebuy vs busting out of an event.
Note: there's no point in worrying about the off chance you might run into AK here. It might happen, but it's a slim chance given the action, and you guys aren't deep enough to be able to fold your set anyhow. If someone has AK, your fate is sealed. You're just going to have to stack off anyhow and hope for the board to pair.
The reason strong players win at poker is because they put their opponents in situations where they make mistakes (as you've pointed out from Sklansky's 'Theory of Poker'). If you put your opponent in a position where it's correct for him to call with just about anything reasonable, you're not only not earning more money in the hand, you're actually forfeiting a significant portion of the pot which is currently yours.
- Just a suggestion
If you really want to improve your game, I wouldn't be looking to these forums for advice. I'm sure there are a few chippers that know what they're doing, but this is a forum for people that enjoy collecting poker chips. It's not a strategy site. I've browsed through some of the strategy threads here, and have seen a tidal wave of bad advice and poor play, with only a few voices that know what they're talking about. The majority of the opinions you're going to get in here are going to be flawed. That's just poker.
@stocky basically called me an idiot for saying you should shove, and there were like 3 or 4 people that 'liked' his post. Don't pay attention to the number of voices backing a particular viewpoint, but rather evaluate the responses on the merit of what they're saying. Always do the math yourself. Most of these situations can be solved mathematically, given the right assumptions. You probably already know about the 2+2 strategy forums, but that's a great place to learn if you want to sharpen your skills. Sure, there are plenty of donks on there as well, but you can quickly figure out who is and isn't worth listening to. There are a ton of world class players there that, for whatever reason, can't wait to tell you how to fix your leaks for free. Most of the players here are casual low stakes players that just enjoy playing and talking about poker. Nothing wrong with that, but it's not where you should be looking for advice if you want to become a solid winning player.