After a lot of brain cycles and playing around with the App Settings, I settled on TOU - Balanced.
I am on PG&E TOU-B (M-F 4-9pm Peak, all others off peak). I believe everyone has to play around with it and then settle into what you are comfortable with using. The system is like a new toy you want to teak constantly.
Now I'm more concerned with having consistent data in my reports than changing modes, etc.
I think the behavior is far more controlled by the size of your PV system related to your home use than anything else.
Right now I'm effectively off grid because we started producing more than home usage in January (gas heating).
In the Summer when we are using nearly 100kWh per day and only producing 70-80 kWh, the system will make sure we have zero peak usage (and export PV production during peak times). That's about all I can ask for really...
I used to be really tied up with NBCs, but when you consider the 90% round trip efficiency of the system I wonder if it's really that important.