How are you testing? DPD? FAS/DPD?

If you are testing FAS/DPD using a 10ml sample, and the CC cleared with one drop, I wouldn't shock. If it took 2 drops, indicating CC was over .5 ppm, I'd let my pump circulate until I was sure I got one turnover and test again. If CC was still over .5 ppm, I'd shock.

I had kids in my pool all weekend. Woke up this morning, water is crystal clear with no CC. I just left the pump running the whole time to ensure good circulation and mixing, then turned it off this morning.