Yes. That's what everyone here has been telling you. Please re-read Ben's last post, above. He's said clearly that you need to let FC drop to 10%-15% of CYA and leave it there.
So if CYA is 60, FC should be between 6-9ppm. If CYA is 90, FC should be between 9 and 13.5ppm. Etc.

THEN see what happens to CC.