Step 9: Label the Coils
I know, this seems kind of dumb to get its own step, but it's reaaaaalllllly important. The next few steps devolve into tangles and chaos pretty quickly, so it pays to be organized here. You're going to make three groups of four: A (red), B (blue), and C (green). Using Avery circle labels can help a lot. I found the combo of letters and color made life easier.
Follow the template if you're confused about this step.
P.S. (ignore the odd ordering of the "B" group in the photo. Just number them B1 through B4. I had the order the way you see it there because of a different--and less efficient--wiring method I had tried earlier. More on that later).