Well the g400 with the new firmware seems to be the replacement for the MX518. I have heard good things about it, but i never tried one.

Atm I have a Zowie AM (since January?), and I can say that it is the best mouse i have ever had.

Well, MX518 and G100S (you want G100S, not G100) aren't similar at all. So you need to decide what do you want: replacement for MX518 (G400, G400S) or small light mouse (G100S and similar mice).

I know the g100 is supposed to have some issues, but at 500 dpi its the best mouse I have ever used. Weren't the issues for more than 1000dpi or something?(I can't remember)

Yeah, at 500 DPI it's fine. It's just easier/simpler to recomend G100S than to explain later why he shouldn't use more than 500 DPI. :)

Fair enough, I think its probably a better mouse overall anyways.

What are the issues?

It jitters at high DPI values. Basically, it's a 500DPI/500 Hz mouse. At 1000 DPI it jitters pretty badly, and above that is useless.

I'd say G400 (non-S) if you want the exact same shape. If you want something similar you could go for a Razer Deathadder 2013, Zowie EC1 eVo/EC2 eVo.

G100s is a smaller mouse, mainly for clawing/fingergrip style playing. If you'd like to try this shape you could also try the Zowie AM-FK, Razer Abyssus, Steelseries Kana/Kinzuv2 (Mind, kanav2 coming soon, gon' be good). Or you could wait for bst's mouse to come out (don't).

GL.

why not just buy another mx518

maybe your current mouse has just dust on the lens?

Bought the G100S

Im happy with this one.


ADD: Changed my mind. Hurts my hand :D Gonna switch over G400s :)

I feel your pain.

http://www.overclock.net/t/1374187/new-logite...t_20603667

Yeah. Exactly. after about 1,5 hours my hand started to cramp like hell. I had about 10 years ago MX300 also, which was "quite" ok for my hand. Never had any problems with it.

i think it's the way the buttons are slanted.

You should have gotten the G400s to begin with.