Interesting set of figures. Sure helps being farther South for solar.
A few days ago at 49.1N I was getting about 30 amps from my 830w at high noon. In May I will see more like 46 amps.
Not able to get accurate AH count in your table vs SOC change. With the numbers changing so much can't average, don't know how long amps stayed as read. It is better to report the accumulated AH with each SOC reading to get a match.
I am having trouble deciding if that would be valid even so. The SOC at the start of the AH count has not been independently determined. Your numbers are internally consistent, but they would be. Hmmmm.
Anyway four years doing that counts as success for sure. Big thing is you don't mind going to full every day, while some are suggesting not to do that for longer Li battery life.
How would you control that if you wanted to? You would have to shut off the solar going to the battery while still letting solar run the loads in the afternoon. Can't do that with some solar controllers like Morningstar.