A few days ago I bought a second 1620 and decided to have one run with B7P9 and one with B7T9.
It may be that my second 1620 is not as good as my first or it may be that the second pc is to blame but my general gut feeling so far is that B7T9 is no improvement over B7P9.
This conclusion surprises me as I would have thought that BenQ could be relied upon to make improvements with each new firmware
I mainly use Fuji ( Yuden000 T02), verbatim ( MCC 003) or CMC MAG E01
Can anyone think of a reason not to flash the second drive to B7P9 ?