Was wondering the benefits of BS and Arms lore....

So far, I know BS add % success and exponential success, and that Arms lore add DI.


Was wondering if the crafting script got modifed here. On UOguide, it says Arms lore add 1% DI for every 20pts of arms lore, up to +5% at GM skill... is it modified so it goes higier or add more DI?


Same question for BS, any point to get +BS other than success chance?

Thx!