ive been thinking, and perhaps i have an explanable, logical idea which to me fits perfectly, ive just been walking around in the valley of the dark lords in kotor2, and kreia has been telling me the history of the sith lords, and what happened to to tombs. when i got to tulak hords tomb, the great lightsaber duelist she talked about how the new sith empire guys (the ones in kotor1 that ended up fighting eachother) where people incapable of keeping and storing the information, the information being a holocron based on training secrets to following jedi from tulak.