Wow, it's changed alot o_o.
Dual Bladers got weaker at 2nd job cause Final Blow and Triple Stab are nerfed (Final Blow was EXTREMELY nerfed: went from 180% to like 110%). But all their other skills got buffed =]
The reason "we" didnt get so buffed is because we were already strong, and the "Big Bang" was to balance the jobs. 2nd job was a breeze, killing CPQ rombots at level 33 was unfair. So its fine for us to lose dmg from 2nd job. But made up in 3rd.