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GPS was killing me. Keep the GPS off and I use less than 2% per hour.
You are probably going to have to delete all of your user apps and the add them back, one or two at a time to see what is killing your battery. I also think if you are a little too aggressive with freezing and deleting you will have problems as well. If an app expects another app to be there and it's not it will wake lock because it doesn't know what else to do.
So here is your plan, add all the bloat back in, remove your user apps, then delete a little bloat every day and add an app or two every day until things get hinky then you will know the issue.
Did you FDR after the update? Its just odd that you are having this problem when no one else is.