I notice the lack of rules for making lightsaber crystals from scratch.
Supposedly Luke was able to do so before RotJ at Obi-wan's tattoine hut, with a furnace, and the Force.
Granted they are considered inferior, compared to naturally occurring ones
Also, i know for ease of the game you can take a raw crystal and use it in your lightsaber, but I think there should be some process to "Cut" the crystal.. maybe that is part of the process when you modify a crystal