Well seeing how the trend for people falling for marketing scam is getting bigger, Ive thought why not help you guys choose the perfect mouse for your needs without breaking your pocket !
First of all Id like to start with, STOP spending money on SS xai and SS sensei, they are good mice with horrible sensors, huge amounts of acceleration kill that mouse, there is no reason why you should sell your deathadder (one of the best mice on this planet, can be even better with some mods!).
Avoid mice with laser sensors if you are an fps gamers, dont be fooled by the gazzilion DPI rating and stuff like 1321313 x more precise than optical mouse, you dont need sensor precision for fps games what you need is high ips tracking speeds, and uniform acceleration of the sensor !
What inaccurate acceleration can do is basically when you move the mouse faster the amount of distance required to do a 180 or 360 turn will be more or less depending on the acceleration.
Now to the IPS, Ips is the tracking speed value measured in inches per second or at times meters per second
39.37 inches= 1 meter.
now there are two thresholds first is the perfect control speed (which is the speed at which the sensor tracks everything perfectly without any acceleration or anything)
the other is the malfunction speed( at this point you are hitting speeds at which are beyond the perfect control and at one point the sensor will 'skip' 1G and 2G sensors are worst in this case, they usually tend to skip at about 40IPS and break beyond perfect control speed after 30IPS.) The deathadder i a benchmark in the max perfect control speed (4.14m/s ie over 160IPS on some mouse pads. This is what earned the deathadder the title for perfect mouse.
Polling rate. Usually most mice have poilling toggles via switch or software, some great mice like the mx518 and the ie3 are 125hz at default, their performance dramatically increases after being overclocked to 500. I say 500 hz is the best polling rate, the compromise between cpu usage cycle and response time.
Shape. One of the most important factors !
To me the best shape is the diamondback from razer as I am a claw gripper, next would be the xai, I do like the shape of the deathadder.
there are different styles of mouse grip
For claw grippers I recommend:
SS kana, Zowie AM, Razer abyssus, TTesports azurues mini or Saphira, Cm strom spwan and xornet(with newer firmwares though). there are a bunch more mice to chose from but ill keep my list short and uncomplicated.
For Palm grippers
Razer Deathadder, MS Ie3, Zowie EC2, TT azurues, a4tech x7 optical mice (with ADNS 3060 and 3080 sensors), SS ikari optical and MX 518.
For fingertip grip
Kinzu v2 pro edition, Razer salmosa, Razer abysuss, roccat pyra. Well basically fingertip grip is similar to claw grip but you guys would prefer using smaller mice if you use this style.
ADNS-3688 and 3888, only available in razer mice and the only IR sensors on the market are truly the best aside from LOD.
ADNS 3090- deathadder sensor for the mass market, although not as great but still on par, and the closest thing near to it.
ADNS-3080- this is the mx518 sensor, one of the best from its era, not as good as the other two above but still very good, LOD is a bit lower than the other two but tracking speed is lower and will hit acceleration after about 2.5m/s has prediction
ADNS 3060-has prediction
ADNS 3050-entry level optical sensor with high tracking speed, good value for money, will suprisingly outperform ADNS-3888 if used with a white surface (only available on the cooler master Xornet and the logitech g100)
STMelectronics sensor found in the MS mice such as the WMO IE3, I forgot the model number but these sensors have no prediction,truly are great sensors but have negative acceleration on some mouse pads which can be reduced after overclocking to 500hz or up.
Avoid Phillips PTE, Avago 9500 and or any laser sensor.
If you like hard pads, Razer scarab or Razer Destructor - simply best tracking and also will offer lower LOD Steelseries Sx.
Soft pads- Pure track Stealh, Razer Goliathus Control, Steelseries Qck, Xfx War pad.
Hybrids- Razer megasoma(because of being a bright surface the LOD should be lower on some optical mice).
Dont have the mentality that SS or razer are the only makers of pro gear, trust me they are commercial now and they dont even collaborate as they used to, I know all of you are going to say that the shape of the xai is epic and this is preferred by most gamers in bd but that is just a variation of the IE 1.1.
SS have gone down the drain along with razer, the last great mouse from SS was the ikari optical. From razer it would be the death adder which is still in production.
THE g400 is an optical mouse from logitech, but it does have some sensor issues and thus I did not recommend it.
Zowie would be the only company left who actually care about gamers rather than enthusiasts. You can google them up they have good stuff, give them a good look.