Well, and this will probably be my last comment on this unless something changes-- I updated both my Pro1 x and Pro1 (in that order) today to the latest OTA updates. On both I downloaded the updates and performed the install and reboot. I also looked around on both to find some settings (the same on both). Otherwise, I just let them sit. Both started out at 85% battery (the max I allow them to charge). 7 Hours later, the pro1x was 73% and the Pro 1 was 75%. I'm going to declare pretty confidently that I don't have the battery drain problem.