Here's my story: I used to play on medium (3) on CoD4, then moved to 5 or 6 on MW2. I was doin 360's with a friend; got off for the night; and got on the next day with Insane sensitivity. I thought I was still on 6 but it was pretty fast; and I was on insane; playing an online game. So I continued to use Insane and still do.