Matt,
First off thanks for you fun thread. If you get a chance, email me at wis97non at yahoo.co.uk, if you dont mind.
2nd, I agree the DS is a very interesting Dac, but I also know you are RBCD focussed via PC server. The DS is really a DSD based Dac and perhaps it shines brightest on that material, even though they say that it brings new life to CDs. I personally love DSD, so I am favourably inclined. I would love to compare in via DSD to my Lampi DSD-only Dac.