Four passes later, it looks like everything is in good shape. Here's the numbers:

FC 5.0
TC 5.0
Ph 7.2
TA 100-110
CH 200-225
CYA 20-30
TDS 400

(Pool store numbers that match the values I was able to independently measure, including FC,CC,CYA.) CYA could come up a hair, but I think that I'm not going to worry about it for a bit. Was glad to see that it held its FC overnight without issue.