should it be a perk to know a Spell Concept?

[whswhs]

The way I handle it in play is that casting the spell *always* counts as producing a prototype (since there is always a chance of a major bug, and this can never be avoided). So coming up with the concept equates to figuring out the procedure for casting the spell the first time. At that point you haven't *learned* the spell; but in my view, you've gained familiarity with it, and can cast it at a default of IQ + Magery - 6 (which can be helped by Symbol Drawing, and you can take extra time on the Symbol Drawing). You can practice casting the spell repeatedly until you've put in the hours for self-study, or you can cast it in an emergency, under pressure, and if you succeed at the latter you can spend a point to have learned the spell.

I wouldn't make the familiarity cost any points, not even as a perk. It's just that you've studied the spell enough to understand the intent, though not enough to perform it reliably.