You spend a lot of time fixing and making things appear better in measurements.
That is part of the picture. But OTOH, I have spent even more time thinking and listening different filter designs which all provide very good measured performance. Same goes for modulator designs too. Talking about objective numbers, especially on forums like this, is much easier than talking about listening experiences.
And once again, I want to combine this with other important things like digital room correction and headphone processing, etc. It all goes along nicely in the same DSP engine. Once you run one of these, you can as well have the other.
A lot more objective evidence is needed to demonstrate that there are audible effects to a -100dB spuria at 1MHz that need to be corrected.
I've been mostly talking about correlated images around 352.8/384k at level around -60 dB. It is not about just broadly spuria, it is specifically about correlated spuria.
Given that there are audible differences between different scenarios, and certain measured differences as well between the same scenarios. Given all the options I have some picture how different things correlate. There are of course many things one can measure.
As I earlier said, there's some amount of gap between "I can measure things you can't hear" and "you can't measure what I can hear" camps. And I firmly stand right in the middle. Sometimes feel like being ripped apart.