This is for pc. I don't know if this works on console.
I think I found another way to get that xp exploit inside the Crystal Cave on Dantooine. I went inside the crystal cave before accepting the mission to clear them out so I don't know if this works once you've accepted the mission.
After killing the Kinraths inside the Crystal Cave, I used to run back out of the caves and reenter. The Kinrath in the Crystal Cave always respawn. Yesterday I disovered you don't even have to leave the caves for the Kinrath to respawn inside the Crystal Cave.
After killing the Kinrath nest, save the game. Then reload that save and behold... the Kinrath are back. Kill them again, save game, reload save. Especially in the beginning of the game this will get you xp's fast.
