Hey DOGISHEAD, why do you 3 bet so big?

It's really mostly a matter of preference. Against a 3x raise, anything from 9-11bb is feasible, anything less or more is generally spewy. I like to 3-bet bigger because I don't like to encourage coldcalls in position and I like to be able to limit the button's postflop maneuverability in 3-bet pots by inflating the pot PF. When you reraise smaller, you are giving the button better odds to call preflop and the pot being smaller allows the button to make more moves, float more liberally, etc. Against a bad player it doesn't matter a whole lot, but against a good player you don't want to be playing most of the hands that you 3-bet, and you especially want shallower stacks when he's got position on you.

Ok :)
About the 99 hand at the beginning of the video 4:00 what do you do if your opponent bets something like 90/100$ on the turn? Do you fold, or push (even if I think we are slightly ahead, way behind here (we only beat a hand like AhKx, 77)).

very good video, but why did you coldcall his 4bet with AA? Don't you think it looks more like a bluff when you just shove preflop? Do you think he cbets so often to make the coldcall better than a shove?

Ok :)
About the 99 hand at the beginning of the video 4:00 what do you do if your opponent bets something like 90/100$ on the turn? Do you fold, or push (even if I think we are slightly ahead, way behind here (we only beat a hand like AhKx, 77)).

I'd just push the turn if he bet $100, but I definitely wouldn't be loving it. I simply have too much equity in the pot against his range, and I can't really justify calling the flop with 99 if I'm going to fold to a bet on that turn. Hands like AhKx (KhQ, QhT, etc. etc.) are a big enough part of his range that folding with one card to come becomes a big mistake, although I would probably put more bet/fold air type hands into his range for betting the turn smaller and not pot committing himself.

very good video, but why did you coldcall his 4bet with AA? Don't you think it looks more like a bluff when you just shove preflop? Do you think he cbets so often to make the coldcall better than a shove?

I coldcalled because I know that if I 5-bet all-in then I am only getting called by the range of TT, JJ, QQ, KK, AA, AK, AQ. I know that is 4-bet range is significantly larger than that, especially since I'd been wailing on him and he wanted to try to push back a little, so although the merit to pushing preflop is that I win his stack and avoid the % of the times that he has an underpair or whiffs the flop in a 4-bet pot with a hand that would call a shove preflop (although there is a pretty good chance that if he has JJ on a K62r board, he'll stack off anyway), I thought that there was greater merit to coldcalling and allowing him to fire a barrel with his air or perhaps hit top pair with a hand like J9 and force himself to stack off with it. The amount of momentum, tilt, and obviously money that I earn when he has a 4-bet bluff is higher when I coldcall, and my hand does not actually look too much like AA. I'm sure he was putting 78h, 99, AJo in my range here for coldcalling the 4-bet, since he probably didn't give my hand ranges too much respect and thought I was trying to run him over.

This was actually chopped out of a larger vid, the second half of which was unusable due to video problems. But don't worry, from now on I'll be able to do it right :P

Awesome awesome vid, I really enjoyed it. I see much heads-up enlightenment in my future.

To win the pot against air or underpairs or ace high. It seems an EV disaster to check behind because you have K high and a gutshot and get bluffed off the turn by 45s which decides it's going to stab once and try to get you off a given up 67o or 55. Plus this is a board he's very unlikely to checkraise with no pair no draw. I see the merit to checking behind A9 here or even 9T, but I don't really see it in K8.

And yes, it's definitely my standard.