Anyone used these audio ceramic slow blow fuses from Littlefuse?

I need no persuasion as to the lack of any sound reasoning or science behind "audio" fuses. I'm simply asking if any believers in the congregation of audio fuse purchasers have formed an opinion about Littlefuse's offerings?  No need to re-argue the same objectivist-subjectivist points in every single thread. 

Nothing wrong per se with Littelfuses. They do their job fine. But in terms of sound quality they don’t sound as good as premium audiophile fuses. It’s the age old audiophile conundrum, whether it’s worth the much higher cost to get a premium fuse.

Littlefuse and Bussman have always made ceramic fuses. It would be interesting to compare the specs and test results to these new ceramics. It's worth $9.00 to compare the gold/ rhodium-plated vs. the standard ceramic fuse.

I do hear a sonic difference when using audiophile fuses, some more than others. But to hear a worthwhile improvement does cost more.

Yes, Littlefuse has always made ceramic fuses but up to this point their offerings have cost a dollar or so at the most. The economy of scale that they potentially have in manufacturing does make one curious as to how these compare to standard issue fuses and the $50-$200 varieties. Fuses are simple things. Other than the wire elements, the material that caps are made from, and any possible filler, there's not much that can differ between brands. If no one chimes in with actual user experience, I'll have to spring for some myself to test in my PSA BHK preamp and amp.

“Fuses are simple things.”

They look simple, anyway. 🤗 What do audiophiles know that Littelfuse doesn’t?