Anyone notice differences in "Time Machine" management of data? I have a 3TB SATA II HDD in my "Mac Pro" for "Time Machine" backups. Since my Mac Pro has 6+ TB's of working data, I am very selective on what data to backup. Usually I wipe it clean ~6 months and start fresh as data management wasn't very reliable. On the current 10.9 DP, I noticed it handled backups much better; with less than 500GB's of storage space, it automatically purged enough data allowing 1TB of space. This has never happened for me before, usually it stops backups with error messages. Does anyone know how it determines what data to purge, what to keep, and how it collates data? Thanks!