It is probably just the percentages that the calculator shows but since the first two, perhaps tin and antimony, only equal less than 5%, the mix is way under Lyman #2. It would be clear if the 00.0 factors were omitted and the actual make up was noted.
Did I miss where he actually gave the weights of any of the materials in his final blend?
Ok, the post by Rick addresses F4B blend, not Shuz.