Using the 12/1/11 patch this is a guide that shows the difference between weapons of different levels and what you can do with upgrading the mods in weapons. We take a close look at the stat changes on multiple lightsabers, and show you the raw hard facts. This guide is designed to help you understand the weapon upgrade system in greater detail. The weapon upgrade is done by a level 49/50 Jedi. Footage was taken from SWTOR Beta and is subject to change.