One suggestion I have after reading about the different gems that could be put into a lightsaber in these rules, is to include rules for using a Corusca gem in a lightsaber.
The setting describes these as being useful as lightsaber crystals, and it could give the Edge of the Empire adventure, Jewel of Yavin, a new spin on things. What if the Force Sensitive character, in the crew of criminals bent on stealing the Jewel of Yavin, was planning to keep the jewel for himself to make a lightsaber? Would it tempt the Force user into backstabbing his friends?
-Eirik