Does the Damage bonus from Weapon Specialization stack with the Damage Bonus from the "Damaging" Weapon Enchantment? From the looks of the Details screen on Inventory it doesn't look like they do. The damage range listed for a character with WS is the same as one without it.

 

Though now that I've played with it some more it looks like Weapon Spec bonus isn't added to regular weapons on the Details page, either.

 

Thank you!

 

They all stack. I'm not sure if it's additive or multiplicative, but they do all stack.