Thanks for the info. These tests along with my own experience are making me consider going back to Reef Crystals, or trying out either the Seachem Marine or Reef. I currently use Red Sea Coral Pro, and although I like it, the alk can be a bit low. It's usually right at NSW, which is great, but I like a little wiggle room.
Also, it looks to me that the Seachem Marine salt is better than the the Seachem Reef salt. The numbers for the Marine are more than adequate, and although the price difference is small, I don't see a reason to use the Reef version.
For those using Red Sea Coral Pro that have mixed the bucket before using it, how are you doing it? I considered trying to pour it from bucket to bucket a few times, but I'm not sure that would be enough.
Billy, any plans on getting your hands on the Tunze salt?