Yes but it is like asking the comparison of two of the same herbs - I had this problem recently with oregano. One brand was so sharp and bitter I could not find any place for it whatsoever. I think its possible to talk about the intrinsic qualities of a component irrespective of where you put it, like comparing 3 oregano on their own.
Decided to try Z-Foils on the input signal coming into the amp, and then Niobiums in the feedback position which seem to exaggerate the color of whatever is used in it. AN is finally sending them my way.
As for silver Tant/Niobium : I cannot stand silver or rhodium in my system because I like the warm fundamentals which always seem to vanish with the slightest rhodium component, so I am fearful of trying these, but I heard they may be different. They are expensive to try.🤔
