i never even thought of KK,AA but i have no 3bet sample so i guess thats quite possible. i think he can definitely have 34s and 45s (perhaps even 46s) on the flop. i dont know much about this guy, but it would make sense for a 19/3 to want to see a flop deepstacked with those hands i guess. also you forgot the 1 combo of 44 jaytoi, not that its going to swing it too far either way.