I noticed a few comments re. stability of Copperhead. I bought one last week and found even with the latest driver / fw it was still choppy from time to time. I'm using 2000 / 1000 and I suspect that the driver at these settings asks for quite a bit of CPU. I remembered a while back when I had a logitech turning the em_exec process to realtime so I thought I'd try this with the Razer (the process is razerhid). This seemed to do the trick. After a bit of messing around I decided that there wasn't really any difference between realtime and high priority. So there you go.

HTH

don't buy it. i have one, and im playing worse than ever. will buy mx518 soon

I had one, but it wasn't nearly as good as the diamondback so I returned it.

I had a db and ch, both had skipping problem but more with ch. I suggest that you read the big mousetest on esreality were they test the mouses in high/low speed etc.

I had a Diamondback Plasma edition that skipped but returned it for a working Chameleon one. No problems with that (although I haven't used a DB in about 6 months).