Posted 21 March 2013 - 17:22
I bought an MX518 long ago and when it broke I cycled through a bunch of different mice: the G700, the G9x, and finally the G400.
The G700 was comfortable but a bit too heavy for me. The batteries didn't last all that long either, and while I could use it wired that defeated the purpose of buying it.
The G9x is a good mouse for claw grippers, but seeing as you've come from a G7 you're probably a palm gripper.
The G400 has the same shape as the MX518 and the G7, and ended up being the perfect mouse for me. It sounds like it'd be a great fit for you, too! I love that they transitioned to a matte finish this time around; it feels much better than the glossy finish the MX518 (and G7 apparently) had. It's a fantastic mouse and I highly recommend it!