In case you come across a bad idle drain (above 2%) then follow these steps.
1. Go to developer options - background check and then block all useless apps that needn't run in background.
Mainly block play services.
2. Reboot device and now check idle drain. If it is still bad then continue with below steps.
3. Install latest beta version of Arm64 play services apk from apk mirror. Reboot.
This should fix drain. If still not satisfied.
4. Install bbs and check any alarms or sensors going rogue.
Sensors will stabilize after few cycles. So don't worry.
In case of huge alarms, use alarm blocker from Xtended settings - Xtra - alarm blocker.
Because careful. Seek help before blocking alarms / wakelocks.
Ask Mady51, babloo289 for more info.
SuperDroidBOND is busy af with the rom. So it's better not to disturb him.