I don't know much about fiberglass pools, but do know a bit about fiberglass boats, it sounds like this is just cosmetic no rush to fix.
You'll want to remove the pucks. They'll add the CYA back in that you just drained out. It shouldn't have an effect on cloudiness that I'm aware of.
The SLAM target for a CYa. Of 60 is 24. Pool School - Chlorine / CYA Chart
Please understand, a SLAM is an ongoing event until testing proves everything is dead, not a one night addition of chlorine to clear the water.
Stick with it until you pass all three tests:
- CC is 0.5 or lower;
- You pass an OCLT (ie overnight FC loss test shows a loss of 1.0 ppm or less);
- The water is clear.
You are doing great!