Just want to report that I am actually starting to see the AndroidOS level off a bit on BATT usage, the OS is starting to learn more and more about my own usage. I am roughly around 20-30%, still not great, but better. I am getting about 18 hours out of a full charge again, not great, but better than what I was getting on a number of other Rom's. I am running JellyCore v1.2, I will give you guys all my tweaks and hopefully this will help a number of you:
I setup the Battery Script mention in the OP. Got the error after setting it, restarted JelllyCore, and it's been holding on every reboot since. No errors or anything after the 1st one
CPUSleeper is turned on and applied at Boot
I use an app called BatteryCalibration 100%, I use this after every flash, even an update
All BusyBox Binaries are updated and I update again after the past few updates from the App Dev. Use the "Smart Install" function unless you are a pro
ROM Tool Box Lite SettingsCPU Control - Govenor is set at hotplugx and apply on boot is checked
Kernel Tweaks - Sysctl Conf - Using ROM Tool Box's default settings, apply on boot. Advanced - I/O Scheduler is set for sio and apply on boot
Memory Manager - I am using the "Ultimate" preset. This is where we will all vary, next tab in "Task Manager." I have actually gone through and killed a number at boot. Some stuff doens't need to be running for a "just in case instance" I control my device and I will determine what MY needs are. I know some App Devs/Companies are just doing what think is best, but then why did I root my device? Go in there and just kill/prevent some stuff from booting and running in your upper memory. Remember, this is America and it's your device. You can even lower the oom value, giving those apps a lower priority.
SD Boost - Turn this up. Controls your read/write speed. This is actually pretty important because if your device has more memory to actually read/write data it can get done fast, not hang and use less battery. Mine is set to 2048kb & apply on boot
Oviously back up your device before making these kind of Root changes. Please ask me if you have any questions, here to help