Put the Extreme's in with whatever you will be using full time and enjoy the process. One day, you'll be listening, and a whole new world of detail and rightness will just appear. I put my SE's in, and just used them. I didn't keep track of how long they had played, or even how long they had been on. I just listened. They sounded good right away, and as time passed, they got better, until one day, boom, they were done. I had friends over for dinner, was in the kitchen, and my friend was listening to something, when I heard a change. Every note was clearer, better, more like music. I rushed into the room, sat down, and was amazed at how much better they sounded. My girlfriend was outside on the patio, and came inside and asked what happened. Enjoy the ride, it's fun.
JCarney