I sometimes encounter a spot where I have a hand like QQ on the button after an open UTG and CO 3bs a reasonable range and I feel like the best option would be to flatcall. Same goes for AKo, that would be a good 4b bluff candidate, but I feel like I can't 4b/call profitably because people don't really "bluff shove" these spots often enough. 

Problems with coldcalling:

- UTG and CO realize more equity than they would if I use a 4bet only strategy

- My range is pretty face up unless I use some kind of a mixed strategy with my AA/KK(/AKs) and when I do I lose some cold 4bet bluffs.

I've seen good players in my games coldcall 3bets in a variety of spots lately, so I thought it was worth trying to come up with a good strategy for this.

I haven't spent a lot of time thinking about this, so I'm surely overlooking some stuff. I would like some opinions on this, curious to see what you guys think.