I never understood this, why would you need to be more agile to handle a sharper weapon? I know it makes it equal out more but it doesn't make sense. It would be alot better if you accidentally slipped and chopped off a finger or something on higher sharpen levels and lower agility, that would make sense. I think putting lots of proficiency in certain weapons should also put in a little proficiency in similar weapons, like proficiency in two handed swords would mean you would be quite good with a single handed sword
