@ I used one of early PSAudio regenerators many years ago, ended up much preferring my transformer based PC. Mine was one of the lower power PS, used only on front end components. Perhaps the newer PSAudio devices much better than previous generations.
I have yet to find satisfactory PC for amps and I've tried many. If battery power doesn't blunt transients could be well worth it. I don't recall blunting of transients with my N.E.W., so assume can be done.