I'm putting stat against stat--3 shift veil vs. 1-rank Alertness. That is based on the player action and the book. Your method is about partial successes (set and decided by the GM) and situational modifiers (again, set and decided by the GM), and you say that my method is the one "based solely on the whims of the GM"?
First off, my interpretation has nothing to do with situational modifiers. I thought that would be an easier way to describe what I was going for, but it just caused you to say I was violating the spirit of the game. Any situational modifier can easily be modeled as a declaration with a tag for +2.
"Partial successes" are not, as it turns out, arbitrarily decided solely on the whims of the GM. The DFRPG is a collaborative game, when the player thinks he should be entitled to a "partial success" he should ask the GM about that. Note that it is not actually a partial success, it is a success, that only barely beats the difficulty, and thus only garners a bit of information, such as a general direction or area, as opposed to a success that actually beats the veil, and gets an exact position.
I have, in fact, demonstrated exactly how a 3-shift veil--stat for stat, raw number against raw number--is an effective defense. And that is not a result of "dumbing down" the opposition, or of playing favorites, but simple number-against-number calculation
The GM is letting Molly's player get away with a trick and play support for the main target of the attack. Molly and Harry are the players; the Gruffs are nameless first-level goons. This makes a big difference. High level enemies? Sure, they can and should make those assessments to make Molly's life difficult (and, indeed, by Changes Molly likely has a few more ranks in Conviction to throw at the Ick). And a player should be able to make those declarations against an NPC in a veil. But the Gruffs? They're not. They're a low-level mob in the beginning of the story, meaning the GM isn't going into kill mode with them.
It is clearly not a number vs. number calculation. You have clearly stated that in order for your method to make a 3 shift veil effective, the enemy has to be a "low-level mob" that the GM chooses not to play optimally. Not only does he have to not play optimally, he has to purposefully disregard sections of rules that say they are entitled to declarations and tags. It is also pretty clear from your statement that you see the GM as playing favorites. "Molly and Harry are the players; the Gruffs are nameless first-level goons," therefore I let Molly win/escape mostly unscathed, even though the Gruffs could easily have inflicted serious damage to Molly. That is textbook playing favorites.
In this system, anything provides fodder for declarations if you'll allow it. This whole thing is, in short, not the way magic blocks are supposed to work. A block is meant to be the block strength, not about having to make declarations.
That is true, but how willing the GM is to allow something is based on how much sense it makes, and with a veil, these declarations make a lot of sense. Further, the block strength is the block strength, the declarations are gravy. I don't know when you decided that a 3 shift block should defend you from a powerful fae with no extra narrative work work, but I do not think that is the case (the fact that the 3 shift block worked for Molly clearly means she put in that extra narrative work).
The book does not say veils are like grapples. But I like when the rules fit together, and are not disjointed. So I like that under my interpretation the veil is like a defensive version of a grapple.
No. Not at all, and you're misrepresenting my interpretation so drastically at this point it's frankly insulting.
As I quoted above I feel I am representing your point accurately. You yourself said words to the effect of "The GM should not use all of the options at his disposal, because the Gruffs are low level mobs." If he does use all his options, your system fails to model what you said it does. Therefore your system's success is contingent upon the whims of the GM.
On the other hand, I feel you have been misunderstanding/misrepresenting my points for at least 4 pages now (see the first response in this post for an example).