My DIY usb cables are the best I have tried. That includes Curious Evolved , Cerious Matrix and Audioquest Diamond.
I gotta tell you I have now tried quite a few USB cables. The best I have heard for sound quality is the Wireworld Silver 7 Platinum. It uses pure silver wire. The sound is much more dynamic and full compared to other $$$ usb cables.
Problem is they are hard to find used and they cost a lot.
But... I am going to buy a Lumin X1 so I may have one to sell in the near future.