OK, genuine question: how come none of the above tweaks/mods make a negative improvement?

I don't mean in the context of the specific trials today, but in the broader picture: differences I can accept - even if I am rather sceptic - but the bottom line is this: Pete are there any tweaks/instances you've tried that make you think' no...actually, I preferred it without' ?

If there are - and I'm not asking you to name and shame - then it would lend rather greater credibility to these kind of threads, to my mind anyway (for what that's worth!). It's the endless 'positives' that get in the way: a bit like Stereophile apparently only ever publishing positive reviews, even if the underlying principles were sound ten 'heads' in a row simply flies in the face of statistical expectation.