Update the kernel to the latest version for best results. The kernels included in the last version of AlterROM Redux are depricated. Also, make sure to allow time for the kernel to settle. Try changing the governor and/or IO scheduler for the kernel. No combination of kernel/governor/scheduler will work the same for every device, due to varying hardware versions and some other things that are beyond my understanding. You just have to play with it and find the combination that works best for you.
If you are having the same issues across multiple kernels and configurations, grab some logs and I will see if I can find what is causing the drains.
Sorry to be a pain...where do I find latest kernel and is SetCpu ok for changing governor?
Thanks