[Kokozama]

OK, I'm pretty sure Tommi had a good point there. Are skills not the experience and and mastery of the technique of a weapon? You have to study and learn the weapon in order to be 'skilled' with that weapon. I don't see how any attachment or equipment to can render you more skilled with something - it just doesn't happen. They may allow you to become more powerful or perform more effectively, but they can't make you the expert of a given weapon.
in addition, I don't think we should be adding any modifiers to skills at all, as it'd allow people to get waaay too strong.