min4betting with kings sounds bad to me. He puts you on aces, and when you have kings he will play pretty much perfectly against you. And you will often have SPR>2 if you are over 100bb deep.
Most regulars at PLO10 and PLO25 don't have the tool to adjust if you start to 4bet them lightly. They will call your 4bet with bad hands, and then on the flop they play against AAxx. So you can embrace the variance and start to 4bet more with hands that have showdownvalue already (good AA/KK) and hands that often flop something or are almost in flip if opponent wakes up with AA/KK. Like ds-rundowns.
The power comes from representing aces on a lot of flops.
Just make sure that you observe how your opponents react when they see your hand after loose 4bet. I remember an aggressive 3bettor lately that stopped 3betting me for few orbits when he saw that I 4bet AKQQds with 100bb stacks. Then he made a 3bet and it was aces that he had been waiting for. Once he stopped hammering me with 3bets I knew he was waiting for the hands. So when he stopped 3betting me, I adjusted my game plan so that I wouldn't have 4bet him with non-aces anymore.
Every time you adjust to your opponents, you should be aware that they can adjust too.