I would toss the CLE Reading for a while. You've done enough. Seriously. You can go back to it at a later time if you want to. MFW has older kids doing the Progeny Press study guides in 7th & 8th grade, so you could go back to CLE at that time if you don't want to try the PP guides.
I also want to comment on one other thing while I'm here. Okay, maybe two.
I had planned on CLE Language Arts for my 2nd grader because he is a boy and frankly just wants to be done. He hates any kind of handwriting but NEEDS it. CLE is all in one book and he can see exactly what he has to accomplish. I'm worried I'd be too lax with PLL (which I do own).
My now-10yo REALLY struggled with PLL when we first started it because she struggles with fine motor skills and language arts in general. Her attention span is very short, she has trouble concentrating, her abstract thinking skills are a little on the "slow" end... PLL just didn't seem like a good fit at ALL. We dropped it for a while.... but I wasn't seeing much progress with any of those worksheets I had her doing, either. I noticed that she would just hurriedly fill in the blanks, toss the book aside, and run off while exclaiming "I'm done!" When I checked her work, it was done VERY haphazardly. Oh, she was done alright! Done filling in the blanks. But what had she learned? Had she done her work neatly and carefully? Did she think about or even *know* what she was doing? No.
I realized that PLL had forced her to *think* about her responses. Even though it was difficult for her, it was training
her. We did some of the exercises orally, but she still had to observe
about her responses. On the ones that she had to write out, she had to really pay attention in order to get it down on paper correctly. I remember repeating to her often, "Copywork should never have a mistake." But she totally lost those skills when I allowed her to go back to worksheets. In summary, PLL may actually be a better choice for your son than you think.
Also, if you stick to the grid in the MFW TM, you won't get "too lax" because PLL is written in there for you to remember.
We've used R&S English all along and I hate to switch. She enjoyed doing ILL (when we were doing it) but I fell back on my traditional upbringing. Language Arts comes easy for our family. DD can diagram a sentence in her sleep. Both kids are reading probably 2 years above their grade level.
Then why make her keep doing R&S English year after year if she already KNOWS it? Is it really necessary? Or is it just a comfort zone for you?
Maybe you could take a break from it for a year or two, and then go back to R&S for junior high to refresh and solidify those skills before starting high school work. Maybe? You say she enjoyed
ILL... why not take it easy and let her do just that for one year? You might find yourself pleasantly surprised.
Now that I have a 7th grader who's done amazingly well this year, despite my own inconsistencies through the years, I'm convinced that this Charlotte Mason stuff really does work.