I just want to put my two cents in here, but... I copied in that config file that you made, and then put in Wolf0's binary...
I'm running 2 R9 270's (non-X).
Initial hash rate was 1800+ kh/s per card, about 3600 kh/s between the two.
After using Wolf0's binary, over 3200 kh/s per card, for...