While we're here talking about compression, has anybody tested the performance of using complete.zip directly to load official parts, instead of looking for them on the file system? My gut instinct is that it could actually be faster on modern systems, but I'm not sure I want to put in the effort necessary to test this when it's such an open question.
Note: I'm not asking this as a way to save disk space, but as a way to improve performance on a non-SSD drive.
