Defines the relative size (from zero to twenty) of the strand that will be off. Used in conjunction with the Band Size.
A Band Size of 1 and Skip Size of zero will have the entire effect on.
A Band Size of 1 and Skip Size of 1 will have half the effect on and half off.
A Band Size of 2 and Skip Size of 1 will have half the effect on for two units and off for one unit.