ok thanks tyler, are you calling a quick shuv here on a brick riv after checking back? Seems kinda unlikly he ever ships his SDV hands unless he is decent and pretty agro. Guess this kinda spot is where i have trouble maybe bc i am not as versed in game theory aspects of the game as you are. Also we block all KQ KJcc hands he may have chosen to chkcall the flop with.

Also one more thing, from SB point of view are you gonna CR your KJcc KQcc hands on this flop given our pretty strong CB [sizing+multiway+flop texture] making it pretty unlikely we have anything apart from strong draws or value in our range? TBH i would fold those hands preflop but say it was a fish UTG+1 instead of a reg opening, then these hands aswell as 89cc and 9Tcc TJcc would be a part of my range, but i would be unsure how to play them given the regs heavily value skewed CB range and our strong equity - always sucks to be in thsoe spots haha, anyway thanks for the reply :)

Yes, I am calling readless. If he is a reg, you are almost never beat on this board texture. He flatted a squeeze oop, then called the flop. His range is going to be 22-JJ most of the time and it will be weighted toward 77-JJ. If he shoves on the river, it is very likely his making a mistake.