Basically, if you can install kp49 + latest testing CSSU, and perform several reboots (by using "reboot" command in console, *not* reboot button in power-key menu), that would be good start.

Then, performing same tests *after* installing busybox-power (together with mentioned kp49 and CSSU) should be "ultimate" test. Of course, there are still possibilities, that something else act as catalysis for bug, but I think that simple test-before, test-after would be sufficient for now.

Thanks for willing to test!

/Estel

// Edit

iDont, sorry if it's off-topic here. If you don't want this discussion to continue here - at least, before confirmation that it's really busybox-power related - just give a sign.