I'm moving my Time Machine backups from my old external to a new one. Here's the problem. I've got the old drive partitioned into 2 partitions, one (600 GB) for storage, and one (400 GB) for Time Machine. I'm partitioning the new drive so that storage has 700 GB and Time Machine 300 GB, since I could use more storage space. The problem is that the current Time Machine partition has 350 GB used up in backups. I'm wondering what the best way would be to chop off 50 GB of my Time Machine backups, so that I can transfer them over to the new drive with the smaller partition. Thanks!