Yeah Ok that is good, BUT different timings is not guaranteed to work. Some different timings work, but some others don't. Dual Channel is picky.
Also DJ-CHRIS, you should run memtest86 and see if your "DUAL CHANNEL" setup really runs without any flaws. Also I would benchmark it to make sure it accually is running in DC.
INTEL i7 930
3x2gb Corsair Dominators
EVGA GTX 480