That setting only works for a data connection and does nothing for WiFi, though Google services tend to drain much more on a data connection.
There's one thing that has always solved this issue for me which i read on a google twitter account sp...
Is it possible to install certain apps after flashing Omega 4.0? When I installed the rom I must have overlooked some Samsung apps and now I am missing Scrapbooker. Is it possible to install just this one app? Maybe extract the apk from the rom ar...
You have only 3 walelocks above a minute, that is good but your phone hasn't been on for long, and you've only lost 1%.
Do a full cycle then post up mate, it looks good at the minute, that's cause there's only an hour or so logged.
I just installed this ROM yesterday and so far so good.
One thing I found while setting it up was a bug (I think) in the lock screen wallpaper selection (from Settings), see attached screenshot