I am trying to educate myself more about my pool now that I am doing my own testing. I am using the Pool Math app to log everything prior to doing my first slam probably this weekend. Is the app choosing my target CYA for me, it seems to be? Or should I know how to set the target myself. I am seeing some posts in which people are adjusting their target CYA if it is super sunny/hot which my pool is (DFW Texas)...I know how impt. this number is for everything else, and I did not realize that I would WANT it to be higher. Is it flexible, and if so how do I decide where I should be year round?? This stuff is complicated but I am trying