My central point is that by stripping away as many of the non-essential functions of the phone as possible I perceive it to improve as a digital source and I wonder if others have similar experiences. The persuasive explanation for this would be the reduction of electrical noise improves clarity and coherence of the digital signal. After all, it is generally accepted that one of the best and quietest power supplies possible is a battery. I believe that Audirvana claimed to do something similar for users of computers as digital sources. This is just doing the same but manually.
If anyone has measurement capabilities for this sort of thing it would be fascinating to know what you find.