NL 5/10....Can I Win Less With Kings?

[Lucky]

I used to be a "bet pot button" guy. Lately I've been seeing a lot of players really manipulate bet size against donks to get maximum value. If this donk has AQ or whatever, and i pot it, he folds; If I underbet, maybe he gives it a shot. When I call his mini-raise, he senses weakness, and puts me on a missed AK. He then fires one more barrel for 100 before shutting down with his AQ or underpair???