The "satisfactory to you" test is the only one that's important to a typical hobbyist, though. The elaborate tests to get everything quantitatively "correct" are important for a commercial product, but home-brew formulas are, by definition, not commercial products. Being "correct" (which I read to mean "identical to Kodak's formula") is just irrelevant for the people who'd be likely to use color chemistry formulas posted on the Internet or published in a hobbyist magazine.
Originally Posted by Photo Engineer
That said, your earlier comment about dye stability is cause for concern. That's something that's not easily evaluated by a photographer until it's too late.