I have a DW1620-OC1. OC-FREAK in his review suggests that the 1620 is a one-sheep burner. I cannot replicate that on my drive with B7L9 firmware. I am hoping that it is just the firmware - I can’t see that different revs of the drive would be that different internally, since they are all using the same chipset.
If any of you have done, or could do the sheep test, it would be nice to get some statistics on this.