A line from the core book confuses me:
"p.97 Enchanted Item Example: Mari turns her attention to making her wand as a real enchanted item. A wand gives her +4 bonus to destroy things at a distance, which makes it a good choice. Animal Bone also gives a +4 bonus. Unfortunately, Mari's Magic Theory is only 4, so she would get no additional bonus. She decides to stick with wood, which is less conspicuous."
I'm having trouble finding anything about Magic Theory being connected to Shape/Material bonuses, beyond the mention for complexes and talismans, which are different than what is being discussed above.
How could Mari get more of a bonus with a higher Magic Theory?
It is late, and I may be missing something. I do seem to recall Magic Theory rules info being a bit scattered...