New Pool with SWG, trying to get started with the TFPC method, a few questions???

I added the 8 lbs of CYA, a week later and my CYA is measuring 40, I am assuming I should add another 6 lbs and it should be 70 which for a Salt Water pool is good??

By the way the PH is holding steady between 7.2-7.5 the past week. I have been maintaining the FC at 5 and have Zero CC. I run the SWG/Pump about 8 hours a day at 20% and it seems perfect so far.
 
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