@mergen3107: I'm not sure how practical a mixed workflow would turn out (if I understood you properly
), but I do agree with the reasoning: another interesting data point would indeed be doing that with no suspend at all (i.e., just sleep).
You'd of course want to do that w/ the powersave governor (and/or manually pinned to the lowest clockrate, if that's supported by the sched/governor on the PW4).
(And inhibit the Kindle's own suspend routines, which probably simply entails stopping powerd).