This is kind of a theory I guess, but if you play where you can button straddle, you should do it every time. It can be very effective. It also starts the hand at the SB which takes all value out of being in a blind and you get to act last preflop.
I started playing wider than usual from the button a while back. This started because of BB defense. I was defending my BB pretty wide and it does sometimes win unexpected hands. At the same time random things happen (like counterfeit 2 pair) with hands you shouldn't be playing, especially oop. I decided to start defending my button instead because if I'm going to play K6 for example I'd much rather be in position. I'm not sure if I'm saying this right but it basically comes down to being in position. If your going to play 2 random cards once every orbit, it might as well be with best position.
Then I started playing where you can button straddle and it made me think why wouldn't you do this every hand. Does anyone else "defend" their button?