Adding bleach during the day does speed the whole process up, but it gets to be inefficient after the first couple of days. As the oxidization of the baquacil slows down you lose more and more of your chlorine to sunlight. How much bleach to add during the day depends on how important finishing quickly is vs how tired you are of buying/carrying bleach bottles.
For now, you only want to test the PH when FC is fairly low. Given that, you might as well test your PH, TA, and CH levels. You will of course be testing FC and CC frequently. Don't worry about, or test, CYA until your FC level remains the same overnight and you have replaced the filter media.