Screen was at 50% the entire time. I don't use auto. Yes, on LTE during non0wifi. Google now OFF. Location services set to battery saver (new kit kat feature)
I keep my brightness a little lower but I'd keep Google Now on but based on you getting 17.5 hours with 4.5 hours screen on time and still having 22% left I don't think I will have an issue.
Plus, you had almost an hour of calling which is more than my typical amount.
This just disables GPS, no? I've always found that disabing GPS to be trivial in terms of battery savings. I saw 2 little mini blips of GPS, and Google Location Services used 26 seconds of GPS.
If Android and the installed apps are implemented properly, no app should be invoking GPS in the background anyway. Therefore, unless you're using Yelp, Foursquare, Maps, etc. for long periods of time throughout the day, you shouldn't worry about GPS. Plus, when you're using Maps, I'm going to guess that you probably want GPS anyway.
That's just what I feel about GPS though. Oddly enough my Nexus 10 invokes GPS for no reason even with Wifi disabled during the day. It ran for 5 minutes or so over a 2 day period, which could be concerning.
I think GPS takes a little bit of power just being on and ready to use even if an app isn't using it.