Highly route and time dependent. I'm about 75% this year, but a lot of them are short haul flights out of DCA: DCA-DAY, DCA-CHS, DCA-LGA. On "real" stage routes, I'm not doing so hot (DCA-DFW, DFW-BOS, etc.). I am usually at the top of the upgrade list without clearing.
Where I have cleared DFW-DCA and the like is usually an evening flight with no meal service (cookies and snack basket only).