[Gray Battson]

No clue on the spec side of the equipment but I’ve had some serious playback issues with my multicam sequence as well.

36 minutes long, Canon C300 MXF files, 4 camera angles. The way I’ve been working around the stuttering has been to lower the resolution of playback a little bit and double check to make sure none of the multicam sequences are also open in the source window. Oddly enough if I closed files in the source panel playback dramatically improved.

Hope this helps until a better answer is offered.