https://litecoin.info/Mining_hardware_comparison/raw_data is where I found the orginal config info that allowed me to get 160Gh/s.  Similar lines bump the speed to over 200 Gh/s total for the two cards, but im not sure what any of the settings actually do (what they mean).  For example, which settings should I change to affect the WU vs. Gh/s ratio?!? Where can I learn about the specifics of each setting?