I have to admit I looked up your other posts and got an idea or two. It seems that you genuinely have something against those presenting things without full usual scientific research methods. I applaud you for your relentlessness and think you are wasting time and energy on a losing battle.
Otherwise, your new turntable looks quite impressive as do your speakers (Thiel 3.something). I have never heard any of those, but just based on the looks it is good enough. I would suggest you demagnetize the turntable belt, though. It is imperative. You have never heard your turntable until you heard it that way. You will get much smoother flow. Of whiskey while listening to it, that is, a reliable friend of mine uses that trick and it works. Use Johnny Walker for that experiment so nobody can tell you that you are not the one. I also heard that 17 seconds of speaker grilles placed perpendicularly to the microwave, running at max, yields much warmer mids.
I saw something (diffusor) that you said you recently bought. Do not laugh at my question, please, but how is it with dust? Is it easy to clean? Washable? How do you make the thing stand? Do you need to bolt it to the wall or it is stable enough just leaning to the wall? I am a very hi-fi and none of high-end and have no interest in major adjustments, but that thing looked simple enough and affordable enough to get to try, play, and dispose of if useless in my case.