I did this the night before last and was astonished at how easily I had beat him. I had put this off for a bit as I expected something as bad as Col Hareth. I did prepare a bit by starting to use T7 to finish off Corellia so I could get used to him. I geared up too. I also read the threads here about the force blast one shot kill. I didn't see how you started the puzzle although I think I saw bits of it. I just wanted to get to the fight so didn't waste time on it. Anyway the fight couldn't have lasted more then 60 seconds. My attempt was really a test run to see how hard it was so I didn't use a medpac, stim or call on the force. I just laid into him and was carefull to leave force kick for use only on the force blast. I was amazed to see how quickly his health went down. At the end T7 was still alive and I was on about 20% health, probably because I went in first rather than sending T7. Before I went into this I thought I'd spend ages at this trying over and over again.