i'm just going to leave the thing in Export Everything mode for a few days and see what it does, then adjust the reserve accordingly to just make it to 9PM.
Astro,
Here is what mine did when I adjust the peak period to run from 4 to midnight.
These are the PW and grid flows. It was set to Export Everything, Time Based.
PW charged in the AM. Shown in the lower frames is that it then let solar run the house and export the excess. Then when peak kicked in at 4 pm, PW took over the house while solar continued (unshorn here) to export. around 6, PW decided to dump it's estimated excess to the grid, after which it dropped back the discharge rate to cover the house till very nearly midnight. Two little details are of interest: In the grid flow pic, you can see that PW dumped a bit more twice as midnite approached, but then just before midnight it hit my 20% reserve, so the house imported for the last few minutes, so little that it is not visible in the house pic.
So it appeared to do what you were trying to accomplish, but I did not need to intervene and change setting to make it do this.
Mine did act quite differently for the first few days, so perhaps it was re-learning my typical solar and house use so it could make estimates and discharge accordingly.
The house and solar complete the story. (Your combined chart is hipper!)
I expect yours will settle down and with the rates set normally, work as you wish. By the way, even though I was on NEM1, I set the sell price 3¢ lower to account for NEM2 Non-Bypassable-Charges. Sadly, I had to switch to NEM2 to register my new solar addition so that PG&E's estimated solar would not limit my export. EE would put me over, so I would lose the benefit..
I've been playing with other settings since. Today it is in Self Consumption, but the cloudy sky is not going to get back to 100%, so I'm adding Grid Charging, but had to up the reserve to make it charge. This, by the way, it is doing at 1.7kW, who knows why.
Fun with electrons!
SW