There's a new video over at OCD HiFi Guy on youtube and he tried out various I2s connections on the Jay's Audio CDT and at the end of the video, he tried and found that SPDIF with Chris Sommovigo's Starlight cable gave the best sound, even better than HDMI. It wasn't definitive, but he'll report back.
All the best,
Nonoise
All the best,
Nonoise