Careful. Do you know the water content (hydration state) of your calcium chloride? What mystical transcendence are you wishing for by such religious adherence to what are in the end only the water profile guesses of a mere man? Personally I place little faith in what I will refer to as 'canned' water profiles. And particularly less so if they ask me to add alkalinity (or bicarbonate, which is a related measure). And zero if they suggest adding calcium carbonate. If no one can tell you where you will end up if you add minerals to the kettle vs. the sparge vs. the mash, how can you get where you mystically intend to go? To get where you want to go, you must first know where you are. But due to many factors it is impossible to know where you are at any juncture post deionized water as to minerals. One factor is the CaCl2 hydration state dilemma. Another is the ppm dilemma as it relates to mash thickness, whereby ppm (mg/L) conveys extremely deceptive information that can only be resolved via envisioning it as to mEq's as opposed to ppm's. And those are merely two of what are in reality a complex multitude of dilemmas that science can only scratch the surface of. But I do highly commend you for using the proper terminology (I.E., 'religion') in reference to using 'water profile' guidance.