Tang, I'm certainly open to criticisms of over tweaking. Indeed my big foray onto WBF was 5 years ago, proclaiming Entreq grounding as the big thing in my life. And we all know how long that thread has become.
For me the move to a hugely neutral room and continued increased exposure to live unamplified has challenged what I look for in sound, how I get there, what works and doesn't work. So, I'm v happy w my source components, pretty content w my amps, love/hate re my spkrs.
And re tweaks, I now only stick w them if they aid tonal and timbral discrimination, and allow every lp and cd to sound totally different from the last. I regularly take tweaks out of the system to compare.
So, Entreq is one I've had a major change of heart on, but on balance still enhances a little stage depth and reduction in hash that reveals more of what's on the recording. But it's a close run thing, and given my time again, I wouldn't rush to invest in it as much as I have.
Westwick 8kVA balanced power and Oyaides dedicated lines into Furutech duplexes are totally beneficial, consistently less cold and terse than the system plugged into the domestic mains. "After midnight sound 24/7" is ticked off here.
Sablon cables, well I'll never convince the "Pricey power cords? You're joking, yes?" crowd, but tone and timbre are so well reproduced, differently disc to disc, compared to cheaper cords I still having hanging around.
Stacore platform under my tt? Years of underachievement relative to digital addressed in a major way, again every lp sounds different to the next, a previously non Stacored homogenous spread out average sound has now been converted via Stacored magic into many absolute gems, and quite a few clunkers.
Symposium rack and Rollerblocks certainly the most cost effective supports for the rest of my system, way more neutral and delicate than any alternative of Mooks or Stillpoints.
And lastly RevOPods under my Zus, in conjunction w Panzerholz, v much like Stacore, truly allows each piece of music to sound individual, contrast between discs heightened. And in comparison to IsoAcoustic Gaias, these failing in the same fashion as Mooks, ie initially beguiling but in the end, cloying.
So, I think I'm confident in knowing where tweaks bring value added, where they're borderline, and where they can be euphonic but ultimately hampering.