I find it very interesting that so many of us are getting astounding results from the SR fuses ... and yet, there are the few who get nothing out of them at all. ... Why there are those who cannot hear the improvements is beyond me. A mystery to be sure.
Same reason one hears different degrees of improvement in components with aftermarket fuses where degree can be zero.
In my case, tube amp most sensitive, follow by tube pre and then SS amp = tube DAC.