Charles, FWIW, I choose a salt that locks me into the desired alk, I can really care less about all the others, as long as the alk is close to my level, I can make up the difference in weekly testing, not that I do water changes, lol... I do however use BW Neo Salts, they are pretty close to my levels as far as alk goes, like 7.4, usually I have to make zero adjustments to my automated 2 part. I am sure you have some salt to burn through, but as time goes by, maybe choose Red Sea, not the pro, it dials in a 7 ish alk, a great level if you run ULNS, IMO... Keep up the great work man!!!