Hey guys, I've been trying to figure this out for awhile. I've been working on projects from a Black Magic Cinema Camera shot in Prores 422 (1080p). I import the footage into FCPX, not using proxy media. I'm using a 6-Core / 32GB / D700 nMP setup. My media is being stored on a Lacie 3TB 7200rpm D2 Thunderbolt external drive. I believe that I didn't have any issues as I started the project, but as the timeline got bigger I noticed some slowdown. I'm working with a movie that is about 5min long now. Whenever I hit spacebar for playback, there is about a 2 second delay. Would this be normal playback behaviour for Prores 422 on this machine? I know it's like a first world problem, but I feel like it should be instant. I'm also getting dropped frames occasionally. I trashed the preferences and that didn't make much of a difference. Would this problem be resolved if I was using an SSD external instead of the 7200rpm HDD? How about if I had a RAID setup? Should I be editing in proxy media? Just thought this monster of a computer would be able to cut through this footage like butter. Please let me know if any of you have any thoughts or suggestions on this. Would be much appreciated, thanks!