Just to give you all a quick run down on what CL really means in terms of speed and performance is .5% difference between CL-3 and CL-2.5, and that is only on the initial burst of information not on the whole transfer. I think too much emphasis is placed on Cas Latency which only effects less then 1% of the overall performance. So lower can be better but is it really that must better? No, just my opinion.