The goal of mixing color to achieve the color wheel is two fold; 1.)get the colors and 2.)learn how to get the colors. I think that you learn from all trials, especially if you keep them organized in a place where you can study them, like a spreadsheet on Google.docs.
This means that no dyeing, data should be discarded, no matter if it is different from what you intended. You might just learn something different.
It also means that you have to spend time studing your results. I find spreadsheets are great for this. In one moment I might want to arrange the results in order of increasing Total DOS, then I might want to see them in order of increasing % of fuchsia. Others might learn from your work. Dye and study. It is not enough to dye alone.
Anne, do you want me to start a spread sheet for your 7 red trials or do you want to organize it yourself? Be sure to include your target Munsell Notation.