[jlocdog]

Isura- If you expect him to call an all in with AT (which I agree with) then how can you justify 4betting with as light as QJ here? This flop is so dry, that our 4bet shove would seem to look quite bluffy/nutty with much more weight on the bluffy aspect which may attract an even lighter lookup.

FWIW I think OP's range given preflop call is PP's of 77+ and then some random SC's and suited broadways/Aces. Since you open yourself up to being squeezed quite often here and you probably know this, I would put more stock in AA/KK looking to get squeezed or atleast diguise your hand for this bluffy guy who is good for a c-bet almost always and will probably overplay his hand against you given that he has position and you are deep.