I shoud've make that clear, I did not use WYRD for sonic improvement and it did not (maybe a little, really little). I used it cuz my computer (designed for gaming) couldn't bring stable signal (too much latency) to my dac.
I've tried nearly all digital connections over year(s) with different dacs, or digital chains. The differences between connections and DDCs/usb cleaners were only "nuance" differences. And believe me I've tested them blind to avoid honeymoon and placebo effects for I'm extremely skeptical.
The thing we (I) don't like as I understand, if I understand correctly, you behave and talk like a vacuum cleaner salesman, who insist the vacuum cleaner he sold is way better than any others based on no useful basis. And you might be comapring your vacuum cleaner with broomstick.
There is no theorical basis, and as it seems there is no practical basis which can be acceptable too.
If you wanna make a point why don't you send "the interface" or whatever this is to people that can measure - theorical or hearing based (with blind test) -, and let him/her share foundings with head-case? Or send it to me, I have various digital inputs/outputs i can compare with it.