fuzzy math tells me that we have to have about 30% equity to call here, so put him on a weighted range and go with it. Obviously it has to be AA a large majority of the time for this to be a fold.

FWIW, I'd 5-bet shove AK at least some of the time in villain's spot.

Also, I don't like 4-betting and folding to a push here. Nobody just calls a 4-bet anyway, so why not do it with KJo instead?

Either calling the 3-bet and playing poker or 4-betting and calling a shove has to be better, I think. I could probably be convinced otherwise.