There is three basic areas about which we can experiment ...
Tinkering is a more uninformed play than systematic experiments ...We must study a bit here not just play...
Electrical , mechanical and acoustical are the three areas to adress for any system at any price ...
When all we can do in this areas is finished our system has reach his potential ; before that our system nevermind the cost would not be able to reach his potential best S.Q.
No singular upgrade will replace the necessary experiments to embed rightfully the components not even the upgrades of all components can do the job by purchasing his way to the top S.Q. 😊 Money cannot replace studies and experiments ... Sorry ...
No measuring tools can magically do the job ...
Even the best designed digital tool ever in my opinion , the DSP based BACCH filters cannot replace electrical, mechanical and acoustical embeddings ...And my only future upgrade will be the BACCH filters ...