I'm not mentioned pyro? I'm hurt. Alexander (99/70 LK), Arion (80/5? high wizard) are both 100% dual client free. Hayate I'll admit is only about 75% dual client free, and Shinobu is mostly leeched. <.< But still.
But yes, EDP can be seriously strong too. I recall two-shotting a lot of people in GS with BC buffs + EDP. And no one believed me when I said I could do probably 100,000+ damage with a sin X sonic blow. <.<
But, I also feel that EDP is justified. True it does drop from bio 3 mobs, but it's not like you're going to be soloing them any time soon. And like every other skill in the game, it has it's draw backs.
But J does bring up a good point too. Some people live in the same house, you know.
