Has upgrade started to drop at 9E? All the shiny ads on this site keep touting 30 months (2 yrs). With you guys filling classes each month (from what I hear). Will upgrade times continue to plummet, in the next 2-3 yrs if the music doesn't stop. Or slowly start to rise, the fatter that you guys get with pilots. Or do you guys have a lot of attrition, helping to keep movement steady?