I though that CL2.5 would be better than CL3 in my G5 and found 1GB of Samsung CL2.5 at a local shop. Im now having a hard time getting the same stuff. (Barefeats got some real uncertain results when they tried to test different RAM speeds. I dont want to base my choice on their tests.) What do you guys think? Should I try to find CL2.5 to match what I have, get rid of it and go to all CL3, or just mismatch CL2.5 and CL3? If you have any technical insight about this it would be great!