Superchlorinate alone will not last for a whole week in this Texas heat. You are going to lose FC as a percentage more than a linear rate per day and suspect you will be way too low by 3rd day.
I keep my CYA at 40 and testing this week in prep for a week I will be gone at end of August. So far, 3 tabs have kept me averaging at 4.5 - 4.0 per day over last 3 days. I check morning and evening. I want to see what day I go below 4.0, so I know what day before to ask my neighbor to add 3 more tabs. So far, it looks like I will need 3 more tabs a little over half way through week or more tabs to start with.
If I let my CYA drop a bit in prep as well, I should get back with a little high CYA for my maintenace, but manageable. I'll know more as it had fallen to 30 when I started this "vacation FC use test".