Just popped in.. when was the last time you cleaned your sand filter? or gave it a deep cleaning. I will confess I did not read the whole thread from where I stopped before. So if you have cleaned your filter I defer to Marty's trusty hands.
Looks good. Maintain the FC by testing every day and adding chlorine to keep in target range. No need to test TA, CH, and CYA every day. FC and pH every day for now. TA once a week. CH and CYA monthly.
You can add some muriatic acid to lower the pH to 7.6 at your convenience.