OK, it took me a while, but I finally got around to re-testing. New numbers:
TC 0
pH 7.1
FC 0
CC 0.5
CH 600
TA 170
CYA 100 (extended test)
I came back from vacation and there was no choline. I have added bleach to adjust. The CYA test was tested with the extended test, using half the amount of...