It looks like you are doing everything right for here!! keep up the good work!
I’m pulling up a chair, if you are looking for folks to diagnose you may need provide specific shots of the problem areas. I for one never shy away from removing necrotizing lower fan leaves, they bring others issues and really the only issues I can see from the pics you posted.
Seems like your soil should have a fair bit N from the EWC might want to run some soil tests to how best to round it out. Likely foliar spray of tea or top dressing with the required amendments shouldn’t be too tough. You will find tons of information on soil and amendments through this thread.