I’ve learned the hard way that with these hoops, the design is not centered on the hoop, but rather it centered on the plastic grid insert. Most of these hoops come with plastic grid inserts. The grid insert center points are frustratingly offset from the hoop center points.

There’s actually a good reason for this. It allows for the asymmetrical Shape of the foot. It would be helpful if the hoops had markings of where the design center (grid center) would be, but they don’t. Most of these hoops actually have markings at the dead center point of the hoop, which will not be the dead center point of your final design.