A few quick questions on some rule issues:

Elemental Magic (p.41) Does having "no disadvantage in adding elemental form requisites" include ignoring the magnitude increase for adding a requisite with an additional effect?

Flexible Formulaic Magic (p.42) Does changing the Size and Number modifiers count as part of Target?

Magic Sensitivity (p.45) What's a magic resistance roll? Or is it a typo?

//Elemental Magic (p.41) Does having "no disadvantage in adding elemental form requisites" include ignoring the magnitude increase for adding a requisite with an additional effect?//

It would still be an advanced effect, so additional magnitude(s) are required as usual.

//Flexible Formulaic Magic (p.42) Does changing the Size and Number modifiers count as part of Target?/

I would say yes.

//Magic Sensitivity (p.45) What's a magic resistance roll? Or is it a typo?//

Hmm - I haven't noticed this before. I allways ignored the word "roll" from that sentance... I think it is a typo.

"//Elemental Magic (p.41) Does having "no disadvantage in adding elemental form requisites" include ignoring the magnitude increase for adding a requisite with an additional effect?//

It would still be an advanced effect, so additional magnitude(s) are required as usual."

Actually, it reads as though there would be no increase in magnitude if the requisite is only another elemental form (the added magnitudes to spells with requisites should be counted as a disadvantage). After all, since all elemental effects are seen as one with the advantage, it shouldn't be any more difficult for the elementalist to make a Ball of Abysmal Ash (fire and earth) than a Ball of Abysmal Flame.

"Actually, it reads as though there would be no increase in magnitude if the requisite is only another elemental form (the added magnitudes to spells with requisites should be counted as a disadvantage). After all, since all elemental effects are seen as one with the advantage, it shouldn't be any more difficult for the elementalist to make a Ball of Abysmal Ash (fire and earth) than a Ball of Abysmal Flame."

This is in fact how our Sg is running Elementalist. The result is that there are Elemental spells with requisits that cannot be cast by non-elementalists. The ball of Abysmal Ash is a good example above.