Hey Chris.
I was getting a few things from Alfred at Highend-Electonics some years ago and having been intrigued by reports on the WA chips, I got one for a fuse also. I think on sale, it was no real cost so I decided to try it. I heard it too.
Retesting it a little today in my CSP3 with a HiFi Tuning Silver fuse, I heard: a little more space, depth, articulation...more revealing...just a little better at pulling out the subtler information...more like music. Here it is relatively subtle, but these subtleties add up giving a clearer window into the music, richer complexity, and making my room more the space of the recording.

Sorry though, I have not tried any more of the WA chips.