Interesting, but the actual battery increase isn't necessarily for standby time it's actually for the use of applications which I can't demonstrate here. You said before that you also played around with pulse audio. It may be the reason why you have such good battery life as I have.
Please note I am not targeting battery life only, I also target performance and sound quality.

Edit: If you have a good eye you would see a point where I did a restart on the device, which in turn made me loose exactly 1% of battery life where one would usually loose 7% upon restart. This demonstrates the increase in battery life when one uses an application.

Look at the areas where the purple line is highest....the area with the small gap is where i did a device restart.