That worked. So, first, I assumed you got the TF-100 and clearly I was wrong. You do NOT have the OTO chlorine test (it is yellow). That is the DPD test you have with the pH test ... honestly I am surprised it did not bleach out with such high FC.
That is a HUGE scoop, and a nice pick color, so seems like you test should be good. Note when you get down to normal FC levels, you will not need that much powder. How fast are you adding drops? Should be about 1 every second or so ... if you go too fast, the drops may be smaller.
So what did you do to get the FC so high before the FAS-DPD arrived?