Hi. I've acquired a nice vintage 2007 MB Pro 17" with 4GB of RAM and 250GB HD. I plan to use it for Word editing, mail, and other non essential stuff, and keep my 2012 MB Pro as my main work horse. I want to migrate my user profile and apps, especially non music ones, but it keeps getting stuck when I attempt to do this. I told it to migrate all applications and info, but not files... Migration Assistant tells me About A Minute Remaining but gets stuck for a long time. The old MB Pro runs 10.5.2, and I run Yosemite 10.10.5 on my new MB Pro (it's best for Logic and my current music apps right now). I thought I should update the older mac to the same OS. 10.10.5. Do you think that will allow me to migrate my apps and user data? Thanks so much for any reply.