River is a very close spot. I think less important than what you do on the river is what you didn’t on earlier streets, which is build a bigger pot. Although I don’t think betting the river is anything close to a mistake, the fact that you are thinking it might be goes to show just how much weaker your hand is likely to become, relative to where it is on the flop. That’s why you need to build the pot early, rather than slowplaying until the board has gotten scary enough that you don’t really relish the prospect of putting money in anymore.

On flop, Villain bets into four people. Whatever he has, he likes it, and he probably isn’t going to fold to a raise. The fact that you are “so strong” should make you LESS likely to slowplay, not more.

A call isnt’ the only thing you want on the turn. You also want a bigger pot. And to some extent, you have to choose between those things. The larger you raise, the more likely you are to get a fold and also the more likely you are to get a bigger pot. The thing is, there are many hands out there, including JT and club draws, where a fold and a call of a bigger raise are BOTH better for you than when V calls a smaller raise. Also, although the size of your raise has some influence on whether your opponent folds, it isnt’ a strictly linear relationship. Like, a raise of 100% pot doesnt’ get twice as many folds as a raise of 50% pot. To some extent, the mere fact that you raising shows strength regardless of the size, and usually you get proportionally fewer folds the larger you raise.

Your ultimate goal, when you flop the nuts, is to get all of the money into the pot. when you’re deep, you don’t accomplish that by calling and making tiny raises (your turn raise was something like 20% pot).