After poor performance doing an upgrade to DP2, I am considering trying DP3. My store code is for DP1 though. Is there any way to just download DP3 without having to download DP1 and install 2 upgrades? Also, is it better to do a clean install of Yosemite? I'm wondering if that's why I had such performance issues when I did it as an upgrade. I also thought about partitioning my drive and doing a clean install on that partition. The only downside is the extra space used and if I want to keep using it, I have to re-install Logic, etc. plus all the downloaded content. I know it's not even in PB1 yet but it's so nice looking and ran so well with a clean install on an external drive that I'd like to use it if possible. I'm not sure why it would run faster on a USB 2.0 hard drive than an internal Seagate SSHD drive.