would users of Gustard's own fuses share how Gustard fuses compare with others like Aucharm, SIBA, ESKA, Hifi tuning?
My own comparison of Gustard's 3.15A fuse in the X26 Pro vs its original glass T2.5A fuse was that the Gustard fuse has a deeper soundstage, slightly better dynamics and attacks are less sharp. But it's hard to say if it is caused by the difference in their ratings.
Comparing the Gustard 3.15A with a cryoed Schurter 3.15A fuse finds that the Schurter has a more relaxed but rougher sound, and a more pronounced mid range.
Users of UK plugs need to consider two fuses in the chain, one in the plug, one in the Gustard, a real headache IMHO