When I tracked at my own station, I could bang out 2 days of tracks in 40 minutes. That's the easy part. It's the 3-4 hours it takes you to find the material for interesting tracks that is time consuming...and big companies seem to only want to pay a couple hours for actual recording. It's the same principle with a talk show. Most hosts of a 3 hour show are in 3-4 hours before air time, preparing...otherwise, the show will suck.