I always to gave me requested for my upgrade into F class all of the time. Because I am Silver Medallion on DL all of time. Because I am very good to be on Delta for a long time. Sometime if F class is full. So I have to accepted where I am stay in economy class. I remember where I flown out from PHX-FLL by redeye. I remember that was good flight on DL while I am flying out of Arizona. I have a nice contribute with my old friends by old school in St. Augustine, FL. This is last time where I went to JAX by last year on Nov. 2008.