W series and ChemTek sorbents are more consistent than the CC medias you push. They fill in the gaps that we need to make good extract. The W Series clays are single source clays with specific pH, moisture, and activation type unlike Carbon Chem which are blends for example T5. We want to let the user decide if they want to use silica or not and we want to provide natural, neutral, and acidic clay options not just neutral clay.
As for the carbons, we offer an acidic and a natural version of bentonite/carbon blends that have a much more accurate pH. Once again we want to let the user decide wether they need natural or acidic options. The T41 you push has a very inconsistent pH.
And MagSil/silica60 is from China look up the import history. I thought you hated Chinese products