Originally Posted by duggs
couldnt we 4bet him with a wider value range because of this? since he will have a dominated flatting range and a wider than normal 4b/fold range?
Actually, no, not with that sized open. If we open for 6x for example and someone 3bets to 18bbs, then we can't effectively 4bet bluff since the size we'd need to 4bet would just be too big and too committing.
Too drunk and tired to write a full response about the polarization of the 3bet/4bet ranges and all the sizing issues and the math and the leveling (it would be tough even if I were sober).
It comes down to the fact that your isolating range for opening that big is very strong, and most don't **** with your opens when you size them like that.
edit: I just realized you said value
range, not bluff
range. Not sure what your second sentence means - vs a 3bet we have a dominated flatting range? Assuming the 3bettors range is going to be very polarized, why would that be so? And why does the opener have a high 4bet bluff % now?