No offence, but have you guys read the esreality mouse benchmark ? That imo is the first article anyone should read before going out to buy a new mouse with your hard earned money.

Esreality Link

That link , and probably dansdata.com are the ONLY websites on the internet that knows their stuff. Point is, you should stop reading a review when the reviewer says 2000dpi copperhead is more accurate than a 400dpi mouse.

For those lazy people who cant be bothered to read reviews, heres a breakdown (strictly my opinion only )
If you like G5 shape , get the MX518.
If you like copperhead shape, get the diamondback or krait.
If you like DeathAdder shape, get the IE 3.0.
All other classification , buy the logitech G1.

For those who want to reduce sensitivity back to good ol 400 dpi, u can always move the control panel mouse slider accordingly. I play games with sens of 2 @ 400dpi, and whenever i use a >400dpi mouse the cursor speed in games and web surfing are totally different, screwing up my aim.

Default is slider 6.

Setting 1 is 32:1
Setting 2 is 16:1
Setting 3 is 4:1
Setting 4 is 2:1
Setting 5 is 4:3
Setting 6 is 1:1
Setting 7 is 2:3
Setting 8 is 1:2
Setting 9 is 2:5
Setting 10 is 1:3
Setting 11 is 2:7

taken from
CAL Forums

Thats enough bull crap to get employed in Razer's advertising team. 100% hype and features that nobody needs, but they make it sound wonderful nonetheless.

Then again if their 3G laser works as advertised, the lachesis might be a decent mouse after all.