Right now I only have FROG test strips. I have a K-2006 test kit on order.
The test showed my FC is 0. Makes sense because I just filled up a brand new pool. (15666 gallons)
Using the pool calculator, I added 70 oz of 8.25% bleach. Later I tested again and the test still showed 0 FC.
I am thinking the test strips just aren't good.