Disclaimer: I offer backup to LTO as a service.
Yes, always backup masters to tape.
I don’t know about 4.0.5 being the most reliable, I don’t go back that far but if a real Pro says its good and it does what you need then no reason to change.
Are you sending the final out to Resolve or something? What is your deliverable?
I have several different external drives but my CalDigit RAID 1 is well built and of course RAID 1 is two drives with the same data so it has redundancy. Lots of folks like g-raid drives but I have had good service from the CalDigit and good tech support.
ISIS is Avid’s shared storage system for allowing multiple editors to access the same data.
Hope your project goes well,
Robert:)