hey guys, i learned how to use the pool calc, and i know it has a range for the targets for each of the chems, but you have to know your target for it to work, so in others words, what are my exact targets for each chem? what should i shoot for everytime i use the pool calc? or is it any number you choose between the given range? does it matter as long as your in the range? i would not like to be on the low side or high side of any given range, i wolud like to be in the middle. does that sound about right?