I noticed, under each stat, if you mouse over it, each stat gives you a bar, that you can max out, up to 100% (Magic Damage, Crit Dmg, Crit Chance, Block Chance, Etc)
Now, say I invest ALL of my points into focus, and max out the +% Magic Dmg at 100%. Does MORE focus further increase output? Or is that only going to help my mana pool?