The fact is that no one who added an audiophile switch said it was useless. On the contrary. most said it made improvement. Luca obviously knows because he is on his 2nd or 3rd switches already.
I think Al added a $500 switch to his mega system, and he said he heard an improvement. Wait! I am not sure he said that since he could not hear any difference from fuses and “audiophile fiber-optic link”. 
But his system is very different from the rest of us.
I think the answer, as is often the case in this hobby, is, “it depends”.
Given your signal path, I have no problem believing adding a switch immediately before or after your Muon Pro would not result in an improvement.
On the other hand, I wonder if there would be any benefit to re-clocking the signal with a switch or other clocking device prior to feeding the signal to the Muon Pro.
I was a vinyl guy, a very happy vinyl guy before you and Vince threw me down this rabbit hole. I would have replaced 2 or 3 cartridges by now if…
We are so proud to help you become Captain Luca in the digital universe that few have gone before. I have personally learned more from you than anyone else in streaming!
Just think that you would have spent equally on vinyl anyway, and you for sure saved a lot of space in storage.
Al’s more needs less. 
Maybe a good phrase for a Axpona t-shirt.
Once the PZ is placed in your system and fully seasoned you will be that vinyl guy once again! That’s my prediction.
Speaking of which… my PZ should be coming soon…
Listening to some more pop with the SW6. Pretty amazing how much cleaning up some of the subtle digital haze (which really was not bothering me, on the contrary my system was the best it had ever been in this respect - with the caveat that I don’t have an analog rig) makes everything better.
Armchair thoughts: I think there is a misconception that reclocking schemes can “eliminate” all timing discrepancies. There is always going to be phase noise in a system, both passed along and introduced. I believe eg PLLs are specified with how many db phase noise reduction they accomplish by frequency, and in the case of a reclocker, just because the output timing is decorrelated from the input timing doesn’t mean noise on the input can’t influence the output. You certainly don’t get infinite reduction of phase noise, and instead of some roughly linear reduction you probably get some nonlinear transfer function, resulting in a “sound.”
“Less is more” works for analog because the electrical signal is an 1:1 representation of the original physical event and you are trying to recall and preserve that with as little loss as possible, and adding more states tends to lose more than it gains. With digital, you have time and amplitude but both are quantized to a fixed reference and any original notion of timing is obliterated and inconsequential - you are told what the original clock frequency was and you literally reconstruct the signal using your own clock. There’s no “original” timing there so everything you do is introducing something uncorrelated with the original recording. “More is more” is probably where we end up because we are trying to get the reconstructed timing as close to theoretical perfection (or maybe just synergistic with how our DACs react to jitter such that it sounds subjectively best) as possible and with the current state of things this necessitates multiple stages of clocking and phase noise reduction, given the relatively coarse timing of the streams we get from the internets and typical network gear.
/armchair
(Yes, I realize even with analog we need to reconstruct timing to some reference - the ips of a tape or the rpm of the vinyl. But any error there results in a very simple linear distortion phenomenon - wow and flutter. With digital, who knows how the hell our DACs are interpreting timing error, but it sure doesn’t sound ”natural.”)
What pop? I listen primarily to acoustic jazz and have few pop reference recordings. I like Rickie Lee Jones and Joni Mitchell, but they are nearly ancient.
My bipolar listening tastes are heavy classical fare (I play the violin and my wife is an oboist) and girly pop. My day job has me keeping up with GenZ cultural trends, so that helps condition me to Top 100 fare and current… aesthetics. I have a non-classical playlist in Roon that I throw any catchy tunes (only female vocalists) into… yes, there’s some Taylor Swift in there…
I will say the production value of mainstream pop/rock has improved dramatically in the last decade or so, to the point where they sound pretty good on a high-end system (a gazillion times better than the vaunted pop/rock albums we grew up on IMO). Swift’s more recent albums are very clean and well-mixed (I read in a review that a manufacturer used Exile as a setup track, nice test of baritone vocals and piano presence right off the bat), Finneas does a nice job with Billie Eilish’s material (put on CHIHIRO for a groovy late night chill)… hell, even Charlixcx bangers on brat sound pretty great (360 is super fun, and 365 is a good gut check if your system can do club vibes at all). I don’t understand why Sabrina Carpenter is the “it girl” right now, but Please Please Please is sweet and enjoyable on my system. Carly Rae Jepsen makes some highly-crafted pop and is one of my faves (E-MOTION is a legit great album), but the tracks are not the cleanest.
I used to throw some jazz in too, but rarely listen to it these days. And no offense, but if you ever ask me to play Diana Krall on my system I will pull the plug out of the wall 
To each their own!
One other suggestion if you want to push out of your comfort zone and hear what all the kids are listening to these days… Chappell Roan (likely a front-runner for the best new artist Grammy) has a catchy track, Good Luck, Babe!, that’s simple and sweet with some throwback vibes (think Cindy Lauper) and decent SQ.
Not to get back on topic for any reason other than it interests me. So.
My fave Syn Research dealer came to my house once to verify if my Black Tower that does Nothing was working or not. He was convinced it was working fine and I was one of the many who cannot perceive it. He then turned on the latest version with all the newest do nothing features. He finally decided that if the towers were in my system it was detrimental to MY system.
So switches and network gear and special cables and fiber and SFPs and all that. I have tried a lot if that stuff. I never hear a difference except for the MUON Pro.
I have an LHY FMC using the Optospan best SFPs and cable going to my SW-6. It is powered by my Fancy Power Strip thingy. (FPSt) When I switched from what someone else said was the optimal SFP fiber combo to the around here best Optospan combo I really hoped it would make a noticeable difference. No such luck.
Perhaps the same receptors that allow hearing the magic towers are needed for hearing networking things?
@paul172 forced me to buy one of these:
A Furutech destat III. Currently on sale at the Cable Company for $329. I strongly believe in its magical powers. Turn it on and do your record, or CD, or tonearm, or audio cables. I am starting to believe just having in the room is an audible improvement.
Some of you may have heard of Furutech. I believe they invented Tupperware or the HulaHoop back in the day. People like them.
I am curious if anyone else has tried this thing? Hopefully I am just imagining its effect, but would enjoy someone else’s opinion.
The music I am listening to at the moment would always result in just me in the room. No one else would tolerate these odd experiments in repetition and odd behaviors.
(Just to bring it back to the current discussion)
I was used to “clean” every LP side before spinning it with this Destat. My ritual, so to speak. It helps reducing clicks and pops.
I tried with CDs… meh!
Since I rarely play physical media recently, it is in a drawer - ready to go but unused.
Don’t forget to pick up the demagnetizer too
The Bunny enjoys being treated with it.
I remember the first one? The white plastic pistol for $15, the Demagnitizer, from Dishwasher?
Might be still around. I think it only worked on wool sweaters.
That thing is more effective ironing my golf shirts than anything else. I doubt you will hear any difference if you can’t even hear the magic of the black tower.
I suggest you remove everything you have mentioned above from the system, and see if there’s any SQ difference. There should be a detrimental degradation, but if not you can donate all of them to forum members here (I know how generous you are👍).
The plus side is your room will look much cleaner, and ready to be filled up with other detrimental things.
I think you have answered the question in my mind regarding the Muon Pro. I was wondering how much benefit, if any, there would be to adding upstream fibre etc if it was so good at filtering. I think the Muon Pro is the next logical upgrade to my system (replacing the etherRegen), probably with no need for fibre optic in the Ethernet path???
