Defo a fold after you 3bet. We 3bet as a bluff not for value, so when 4bet let's just muck this. AK/AA/KK/QQ all dominate us, would rather shove with A2 or a PP than KQo.

From looking at the hands posted today, I get the feel you're leveling yourself quite a bit in spots by over thinking ranges in certain spots.

Yeah maybe your right and he always has value her because of the capped range.

But given the stats it's so rare a reg would trap, like it's a terrible play, given I'm not going to bluff much and because the guys free money to 3b for value.
But using that same logic, he should know I have value and lot and not 4b bluff me.
So actually I guess you've helped me answer my own question, he's either played the hand badly with his value or is making a really really bad 4bet bluff.

So I didn't think enough about my range and gave the reg too much credit for being a good player.