So in a lot of the responses I'm seeing on various posts, there are comments as to situations being different if you're deep stacked. At what point in bb are you considered to be deep enough that the math starts to change? My normal buy in at a 1/2 where allowed is 300 so 150bb so I'm wondering if I should be adjusting my style from the outset.

I generally consider deep-stacked 200BB+. It is a continuum, though, not a binary.

I think in Pro No Limit HoldEm vol 1, they assume any stack size where it takes more than 4 streets of betting to get stacks all-in is "deep." So, if you can raise pre-flop and get stacks in by betting pot or less on flop, turn, and river, you're not deep. The deeper you get, the more you can loosen up when in position. You should consider average raise sizes in your games and look at average SPRs to really get an idea of what adjustments you want to make. Playing 200bb effective is much different than 400, which is different from 600, etc...

It depends on how big your game plays. And by that I mean how big a typical raise is pre. If it's 1/2 I wouldn't consider 200 bbs deep cause people are opening 5x and a lot of pots are multiway making the SPR low. But if it's 2/5 I certainly would consider 200 bbs deep and maybe even 150 bbs deep.

A qualitative criteria would be stacking ranges. At what point do you start stacking off only AA preflop and flatting the last raise (usually a 4 bet) before an all in preflop with KK? At what point are you able to fold AA postflop in 3 bet pots to aggression?

I once had a conversation about this with one of the best poker players I know, plays $5/$T in Las Vegas.

He described a hand where he held 9d Td and there was a raise and three callers. The flop comes 7s 8c Js. Betting and raising break out against a solid opponent, the non pre flop raiser. My friend said he would bet or raise or reraise but not go all in for fear of being free rolled by a strong opponent holding the 9s Ts.

This happens more in Omaha where your other two cards cannot help you improve. It happens rarely in Hold'em. That is his definition of deep stacks.

At what point in the game would YOU fold the nuts on the flop for fear of being free rolled on a board with two cards of the same suit? It is a lot more than 200 BBs.

Flame away!

200BB is a good starting point.

But it is largely game dependent. I play a small home game where getting in 300BB pretty with 10's is probably plus EV. You won't see that in any casino.

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You don't fold. You just pot control.

Theoretically, as long as you know have 50% equity when called, you can profitably shove infinity into an infinitesimal pot.

Practically speaking, you usually do not know your equity when called, and live calling ranges are sensitive to sizing. Depending to an extent on pot size, there is a sizing at which point shoving T9dd on J87dss becomes a bluff when the only hand that can call you is T9ss. That rarely will happen on the flop in live poker because shoving is rarely the most EV option with any hand.

You never fold the nuts because you never know for sure some dude is on a free roll. You may suspect but can never be sure. Please give an example of hand that clearly shows us you have the nuts and villain is on a free roll. Explain both hands and how you come to the conclusion he's free rolling. I really want to know how that is done.

By mu "book", so to speak, It has got to be you have a str8 on a flop two tone and villain got the same str8 but his got the FD too. That's the classic free roll. But we cannot know he's got the str8+free roll to flush 100%

But I'm gonna tell you a secret of the trade. You have position. If you suspect he's got the same str8 and he's free rolling to flush, what you do is keep the pot small under control (pot control) and on the turn say this to the dealer: Pair the board, Baby! and if the boards indeed pairs (10 outs) and no flush, (you got more outs to pair the board vs. his flush cards) Wow! .. wtf .. pardner.., You shove the entire deep stack in the middle. You got no risk. In the worse case you split. The best case he folds.

your hand AK
his hand AK

flop TJQ

turn TJQ7 <==== "Pair the board Baby!"

if the river brings 3 Tens, 2 Jacks, 3 Q, 2 Sens = 10 outs so the river looks
TJQ7T or some other combos pairing the board, you shove and see him having heart attack ... (LOL)

I've seen players on this board flipping about about preflop sizing because we're "too deep for the raise size" when the player is <100 bb deep.

I generally consider myself to be getting pretty deep when I hit 250 bb, $500 at 1/2 etc. It's not that hard to play deep, you just need to be checking in spots where a raise could lead the pot to spiral out of control when you have a good-not-great hand.