for the price diff from 245 (copperhead) vs 115 (krait) is alot difference ... but the performance isnt much apart .. just that copperhead can go 2000 dpi which u dont need and the krait can go 1600 dpi  ... lol ... im using krait in all the games i play .. its a good overall mouse ...

my 2 cents ...

Well there a review for this mouse @ this site fro the Salmosa http://www.techpowerup.com/reviews/Razer/Salmosa

Hmm, the G9 laser mouse can add weight?

huhuhu nice mouse, how much/where do you bought it.... there's a lot my review stated that the additional grip cover seems to peel after some time but i hope it doesn't happen to you or others g9 asian specs.

lucky for you since logitech sg seems to cover that, btw how much is it?

so G9 is for clawler?the cover is jus to make the mouse bigger?or it provides better grip?tks..

oh..but if i use the bigger grip skin means it will slip wen i sweat?tink of gettin it for my fren..bday present..haha..it has weights too rite?

Some other people find it useful. But for me it's quite a troublesome.

so that means even wif the weight inserted u can only feel it at the back of the mouse?

oh..wat if u take out all the weights?

Ur mouse With 1000Hz pooling rate eat up 30~40% SPU usage????
Is it something wrong? Should not be like that  

He's commenting on his personal experience with the Sidewinder. What's so strange about that? What's stranger is that a guy with 7 posts who just joined today is making comments about what another member is "always" doing.

Back on topic though, my Lachesis at 4000DPI with 1000Hz polling only eats about 15% CPU max, and this is with other programs running in the background. Likewise for my DeathAdder. Maybe you have a slow CPU? Ultrapolling does tax CPU resources, but 30-40% is insane.