As for SIGSTOP, it definitely *do* the job. The question is, if it provides more power-saving, than monitoring of dbus signals use Remember, that this way *every* dbus signal is monitored, and script only "act" on some of them - but, power/resources is/are used already, even to monitor "other" signals.

That may be cause of why, every measurement show a little more power usage, when power-saving scripts monitor dbus. As opposed to "perceived battery life"