All is good. The first (practice) stone I cut from lemon citrine ended up at 13mm, on this one I changed the cutting order to cut the center breaks before the center mains.
For the second stone, I cut a 10mm Four Peaks amethyst of really nice Siberian color and followed the sequence exactly as written.
Overall, it’s probably easier to cut exactly as written, but when you’re cutting in the center mains, it’s hard to convince yourself you’re not overcutting them.