In what way did I not optimize my digital (other than not spending a lot of money on it)?
First, is your objective. There are people who spend money on a lot of hifi gear without any research or objective, they have the money so they just ask someone to install some speakers that look appropriate to the furniture and leave. Is this optimisation? No. It could have a lot of money behind it.
By your own account of the post I linked above, you had no intention of getting your digital to your vinyl/tape level. Contrast this to Mike's objective.
Now Mike's analog might not be the same price as his digital, but we all know he has put a lot of research behind it, tried various alternatives, done all that he possibly can in terms set up to get the best out of it and go as far as he can on his TT set up. Imagine instead, that he bought a Rega, put a rbasic cartridge on it, did not spend time aligning it, did all his auditions on digital instead of on vinyl. What would be the point of visiting him with LPs? One should then visit his house only to listen to digital.
If you wanted to optimise your digital, you would have done much further investigations on digital, on the optimising of the ethernet etc, tube swapping, than you have. You would have done streamer shootouts, CD player vs streamer, different recordings of digital. Plus, not stayed with the basic level of Lampi which is in stark contrast to going with the top model of the Brinkmann, with the top models of Reed, Zyx, and Grado. Think in contrast of a guy who buys the Horizon, but instead buys the lowest model of Zyx and Grado, consiously a low model TT, and the lowest Aesthetix phono model. The level of efforts is clearly lopsided. Do you think the latter guy is interested in optimizing his analog?
Which is fine for your objective. But then I just don't se ethe point of evaluating your system on digital .Similarly, if one went to Rudolf's place, they should evaluate his system with digital.