DAL does have PBS, and rickair's post is exactly right - or at least it sounds to me almost just like what I heard in a brief today from the PBS gurus at DAL. I think it's closer to 3.5 a day if you have a line, but that's obviously nitpicking. And it's 1/30 of your reserve "minimum" for a 30 day bid period, so that's ... uh ... 7/3rds of an hour per day if you are on reserve at DAL.