A character receives a free Reach — which does not add Paradox dice — per dot of her highest-rated Arcanum that meets or exceeds the spell’s requirement. For example a mage with four dots of the Mind Arcanum gains two free Reaches when casting a spell that requires Mind 3.
~ M:tA 2E pg 112
Are the dots that meet (in the example above mind 3) and exceed (mind 4) counted together, or is only the fourth dot counted and there's is an implicit free reach when casting that I remember being mentioned, but I can't find a reference to.
That is, if I am right in my recollection, mind 3 and 4 both provide 1 free reach, but mind 5 would provide 2 free reach, with the 2nd and 3rd being free regardless it your dots in mind.