Yes Firewire. Digi003 rack to a recent iMac i7 3.7gHz / 32Go RAM / Mac OS 10.8 running PT10.3.9. I have to try with my Firestudio tho.
I got plenty of error messages actually. Performance wise, CPU is quite high even with buffer size at max and set to 7 cores (but some sessions have many tracks and shitload of plugins so it's normal to me) BUT disk performance is high as well wich is not normal I think. I will switch my audio HDD very soon, maybe the current one is almost dead. Anyway, it does not explain the VSTi missing, crashes and once VMR eq modules missing... What I would like is to be able to read the crash reports.
PS - never got issues with audio HHD via USB but I saw that Firewire was recommanded... What's right?