On pg. 55 of the Weapons and Equipment pdf it states the cost of having a Spirit Magic Matrix created: "Spirit Magic Matrix: Creating a spirit magic matrix for use by the customer. Price: 200 L per point of POW expended for its creation, plus the cost to learn such a spirit magic spell, plus the cost of the item." Why is the cost of learning the spell included in the price? The point of matrices is so that the caster doesn't need learn the spell or spend CHA space on knowing the spell. Is this supposed to reflect the cost of the maker needing to learn the spell? If the maker already knows the spell, is this cost not incurred?