Not exactly related to a Time Machine question that I had about a week ago, but sorta a follow up. Recently, I moved all my data from an older Macbook to a more recent MacBook Pro (last of the non retinas), and I used Time Machine to migrate all my data. However, I wasn't quite sure to convert my Time Machine to Mavericks quite yet for reasons. However, I have a second hard drive I just got and I want to use that to back up my stuff as well. I'm wondering if it's okay to start using my new Time Machine hard drive right away without converting my older Time Machine, as I intend on using both. Thank you.