Okay, a few thoughts of my own after reading everything:
- Recap ... hints or green water will only come from two things: iron in the water or algae. I don't believe you have an iron problem, otherwise the green (or sometimes it turns brown) would've gotten worse with more chlorine. So we have to look at algae.
- Brushing the walls may have dispersed some CH into the water, but shouldn't have any effect on completing a SLAM.
- I have about the same filter as you, so it can get full quickly, but it sounds like you're taking good care of it.
- The cloudiness could be a lot of dead algae simply circulating until it can get filtered-out. The brushing would kick it up more until enough gets filtered.
- You (and your wife) appear to have captured a correct CYA assuming it was a bright sunny day when you inspected the CYA (black dot) tube outside. If it wasn't let us know. As you already know, that CYA is critical to ensuring we have the correct FC SLAM level.
When it comes to a SLAM and proper sanitation, it's a simple as the right ratio of bleach and stabilizer. Sure, we adjust pH first to 7.2 because a SLAM can take a week or two, but the other factors are really just for calcium (scale) and acidity control. For clean/clear water, it's all about the right amount of bleach and time. Your SLAM is still relatively fresh - what, about 4-5 days I think right? Your pool is not a swamp like we've seen in other cases, but a SLAM can still take an easy full week or two as it continues to break-down algae.
Also ensure you've left no stones unturned for algae hiding places. Yes, leave the solar and any other plumbing avenues open for circulation. The bleach must pass through any places where algae could be stagnant or still attached. Did you check behind any light niches, railings, or stairs if you have such hiding places? I even had some algae under my skimmer lid at one point, so be extra picky when looking around.
You have lots of eyes on this thread, so we're rooting for you and will watch/reply as needed. Try to have a good day.