Stevebohnii,
I haven't connected the Iris DDC yet. I've got two cables that I'm still breaking in: Audioquest Vodka 48 8K and a Supra 2.1 8K cables, and then I'll start testing them between the Iris and Pontus II.
I have read nothing but positives from adding the Denafrips DDCs to their DACs, hoping to have the same great results you have seen......probably in a couple of weeks I'll start adding the DDC to the system