Yes I did with storm and my viking I love the 8w Yatono ultimate but there was no 8w silver cable and all I can really say is the silver 4w just enhanced(verryy subtle vs my stock cable Magnus 8w) what's already the strengths of the iems except bass. it's left me wanting to know what kind of difference the 8w silver would make because 4w Yatono ultimate vs 8w Yatono ultimate is a huge leap to my ears on the viking, holographic staging smooth(romantic mids) hint of analog sound blacker background.Did you get a chance to demo Brise silver in the end?
Just to clarify 4w silver wider stage very small difference, treble is about the same maybe smoother and less sibilance than Magnus 8w.
I think the highlight of the silver 4w was speed/smooth treble especially for a silver cable/wider staging/dynamic