The fastest way, and the hardest to achive, is to have Luke encounter Vader and/or the Emperor. If you can find one of them, or both if you are lucky, on a planet, blockade it immediately and send Luke on espianoge missions. He will be descovered immediately and his mission will fail, raising his force level. Also, he will have an encounter with Vader/Emperor which will also raise his force level. This way you will get two for the price of one!! A couple of notes: 1. If Vader or the Emperor are not on the planet you are using for Luke's force increase then do Sabatoge missions, NOT espionage because they take to long. 2. Try to find planets where Luke will always fail his missions. Success will raise his stats but not his force rating. Increases in force rating will raise all of his stats too so there is no point wasting time with missions that will succeed (at least not early on) since his force rating will help your other Jedi. 3. Keep an eye on Luke's combat rating. If it is not as high or higher than Vaders then Luke will get injured or worse captured when he encounters him so it ends up a waste of time. Usually at around 220 or so in combat rating Luke is ready to encounter Vader (perhaps sooner but not much). This is the best method of force increase that I have seen, and the fastest, so you should give it a try. I've raised Luke to nearly 1800 combat ability this way in no time. At this point I stopped and performed a training mission and ALL of my Jedi were at Jedi Master after two missions (some only needed one). Also after you encounter Vader send Luke to Leia or visa/versa and she will be a Jedi. You prob already know this but the point is that she functions the same a Luke; she increases with failures. So the same process described above will work for her too.