There are a great many equivalencies between Resonance and Magic; many of their abilities are very similar both in fluff and mechanics. One difference that stands out is the limit at which their respective abilities can be used at.
You must declare the Force at which to cast the spell... You can cast a spell at a Force up to twice your Magic rating. (emphasis mine)
When you thread a complex form, you choose a Level for the effect... You can choose a Level up to three times your Resonance rating. (again, emphasis mine)
I am well aware of the fact that the sourcebook is laden with typos and lazy editing.
Is that all this is, a typo, does any published material explain the reason for this difference?