When The Magic Is Gone, What Do You Do?

My magic-numbered-fixed-gear-vertical-dropout setup just does not work very well.  I'm so powerful now (insert laughter) my chain flops off after less than a month of hard training and racing.  So, I've taken matters into my own hands.  What matters?  A 10mm round file.  Now I can give my magic numbered set up a little more magic by pulling the wheel back as things get loose over time.  Here are the before and after pictures.  Stupid?  Leave a comment.