u/Merckyman

Apologies in advance on this question, but I just can't seem to retain why its beneficial to create another version of one of my weapons. For context, re-calibration makes sense to change an item's attribute to something that suits your individual needs, and optimization increases an attribute's percentage benefit. Can someone please help me understand the benefit of of using the crafting bench? I know what it does, just having trouble understanding the main benefit(s).