Following up... @rbstehno ...
1) YES, upgraded to Sunshine and ran continuously for 2 weeks
2) NO, I2s which is clearly the best case for the DS
3) NO, I2s See #2
4) YES, used the DAC for 2 years with >1K hrs and see #1 for firmware
5) YES, followed Teds recommendations as they evolved over the years
Thus, In summary I can easily restate that the MAY KTE spanked the DS "in my system" and by no small margin. However... as I have pointed out elsewhere that the synergy between components can be far more important than any single piece.
1) YES, upgraded to Sunshine and ran continuously for 2 weeks
2) NO, I2s which is clearly the best case for the DS
3) NO, I2s See #2
4) YES, used the DAC for 2 years with >1K hrs and see #1 for firmware
5) YES, followed Teds recommendations as they evolved over the years
Thus, In summary I can easily restate that the MAY KTE spanked the DS "in my system" and by no small margin. However... as I have pointed out elsewhere that the synergy between components can be far more important than any single piece.