May I suggest something that might help?
Wipe both ends of the fuses before placing them all in the devices in the same way (i.e. writing left to right, or otherwise, your choice). Secure them in place, switch on the device and play the music. Thereafter I strongly suggest you let the fuses be.
IF you feel the need to experiment give it at least two mins operating time before changing.
(I was given designer fuses and installed them in my DAC & phono. They work very well, no audible differences though.)