Sensing circuits are adapted for faster sensing of a programmed state of a floating-gate memory cell. The permanent magnets in one row are skewed from those in the other row in a circumferential direction by a row-to-row skew angle \u03b8e. A wheel is rotatably mounted in the slot with a portion of the wheel extending into the interior cavity. A portion of the multiple descriptions may each include a token descriptive of the target entity and of a subset of the multiple users.