[mojed]

People may disagree with me, but I don't think position makes a huge difference here with 100BB stacks and a 3-bet to 12BB, the reason being that a lot of the money has gone in preflop so there's less maneuvering postflop. This all changes if the villain has some exploitable tendencies after the flop, such as bet sizing his missed hands differently to made hands etc.

The size of the 3-bet obviously influences our implied odds, I'm calling a min 3-bet with 22. Less sure about the suited connectors and one gappers.

Also, because we have the luxury of such a well defined 3-bet range, if we also have a well defined range of how the villain handles a 4 bet, you may find 4 betting light exploits this villain's 3 bet range. The 3-bet range you described is 8.9% of all hands. Suppose the villain will fold everything but QQ+ and AK to a 4-bet, which is 2.6% of all hands. This means the villain folds 70.8% of his 3-bet hands to a 4 bet. So if we make it 36BB total, we are risking 32BB to win 17.5BB (12 + 4 + 1.5). 70.8% of the time we win 17.5BB (0.708*17.5 = 12.39BB), and 29.2% of the time we lose 32BB (0.292*-32 = -9.344BB). In total a light 4-bet wins us about 3BB on average. Many people who 3-bet fairly light as you described don't defend 4 bets with enough of their range and are thus exploitable. So chuck in a 4 bet occasionally, while mostly folding with your SCs. It'll help balance your 4-bets for value too.