I myself was in the pool on sunday and I believe the ph was about the same and i was in for over an hour with no problems. I think even last year my ph was not so normal like now but as mentioned no one ever complained about irritation or discomfort.When are you going away? It won’t waste chlorine or harm anything to add it all to the target we mentioned the day you leave. Fc in the water is fc in the water whether you put it in slow a little extra each day or all at once. The fc gets consumed daily, the higher the fc the faster it burns off so you may end up actually using more with your plan if you have a while before your trip.
Let fc fall to 10ppm & check/adjust ph or get a meter.
Adjusting it now based on skewed results is a bad idea & you can accidentally overdo the acid.
When you do get to where you can adjust ph , circulating for 15- 30 minutes after the addition before swimming is sufficient. You want ph in the 7’s for swimmer comfort.
As for the fc. I just got my pool to look clear etc because of the proper minimum of chlorine. I would truly hate to bring it down to 10. Now that i got it to b higher than minimum but not anywhere near slam level i can hopefully keep it this way and now just add every 2 or 3 days instead if every day?