If you study a container of a spell bound by this Virtue, how should this work?
How many things should be find it? The sustained spell? The spell "Sustain the Spell of [Form]"? Nothing because is too similar all the point to "Warding Spell"?
Opinions please.
Do you mean spend a season in the lab investigating it as if it were an enchanted device? I'd let the character figure out within a day or two that the item isn't an enchanted device and use their season for something else.
Do you mean investigating the item with a spell? I think that the description of the spell used to investigate the item should answer the question, there is no general answer.
Do you mean what particular spell should be used to unravel the particular properties of the product of a spell binding ritual? I suppose that this would depend on what information you want to get. If you want everything you might need to create a spell that isn't in the books.
I said that option.
Well i can see how the inVi Spells work with spells and this is right.
InVi and InTe Base 20 should work a few, since that last guidline can make knowns magical propietys of a object.