Retreating backwards, enticing an opponent to chase you, the suddenly lunging forwards with the blue lunge works well, especially in narrow areas.
Also, kicking people to the ground then running over and sabering them (medium finisher is good) works well too.
As for DFA, I just don't like the move - its too slow for my taste, is easy to dodge and leaves you very vulnerable if you fail. Medium finisher is also too slow, but its good against people already on the ground. Backstab/backswing have their uses, but aren't any use as a primary attack - if someone attacks me arse-first I just throw my saber at it until they learn that arse-first isn't a good way to fight.