Wireless mouse requirements

[beatle]

I've been using an MX510 for years. It's a good mouse, but the wheel is starting to flake out. When I bought it, wireless mice were just starting to come into their own. I'm trying to make the leap now, but it's tough.

Lightweight:
The MX510 is around 122g which is pretty good. Lighter is better, but I don't think I'll find that in a wireless mouse. I'm a finger-grip kinda guy, so I really notice a heavy mouse.

Two thumb buttons:
I still game casually, and having two thumb buttons is a requirement. I also regularly use them for forward/back when browsing.

Clickable middle button:
Apparently some mice don't have a clickable middle button. I found out that the Logitech Performance MX Anywhere has this "feature." I use the middle button all the time in games and browsing to open a link in a new tab.

Centered sensor:
This was the death knell for the Logitech M705 I just picked up. It was a perfect mouse until I realized that its orientation over the X and Y axis was not correct. After doing some research, I found out that this was a popular complaint due to the off-center sensor. Without some way to calibrate or account for this, it's a total non-starter. Too bad as this was otherwise a perfect mouse.

I've done some research on the current offerings and I keep seeing mice that don't measure up on one or more of these requirements. Maybe there's a discontinued mouse I can find that measures up? If not, I'll probably just look to find another MX510 or MX518 in decent shape that will do the job.

 

[Cerb]

G400s is the new MX51x. The plastic on the sides are textured, with no rubbery stuff, but it's otherwise 99% the same as a MX518, with an updated sensor (3600 DPI version of the family used since the MX500). So, if your search comes up empty...

 

[beatle]

Thanks. I see that, though it's a bit expensive (I guess I'm cheap when it comes to mice.)

The G602 is actually wireless as well, and comes in at 129g with a single AA battery. I could roll with that, though I don't need all the fiddly thumb buttons. If they're easier to use than they look and it feels nice in the hand, I might go with that.

There are a couple older Microsoft mice that might work. Intellimouse Explorer 2.0, and the wireless Explorer with bluetrack. Too bad they're so old - no way to tell what they feel like until I have them in my hands.