In my main system I have a full loom of HFC including some MC-O.5's and one MC-6 Power Distributor. I was able to add some Synergistic Research BLACK Quantum Fuses to my Yamamoto Dac and Allnic L-3000 Preamp (in addition to the HFC products I'm using) and with a little break-in time the results shocked me in a very positive manner. Similar to someone trying the HFC for the first time or a major upgrade in cables. If you have not looked at this thread on Audiogon, you should because you own it to yourself and your system for further improvement:
https://forum.audiogon.com/discussions/synergistic-red-fuse
Just trying to pass on some good information.