Unlocking Darth Revan

When I was working toward for DR, I went way overboard on all the characters. The only zetas needed are Bastila's and possibly HK's. Juhuni and Carth are okay, but sort of a waste. Definitely bring all characters to Gear 12, and Bastila to as high a relic as you want. The Ajunta Pall battle is the hardest one, I needed to attempted it at least 50 times.  After that it's a breeze. Good luck!