Oki oki, time for a new mouse!! not because my actual mouse is dead but because maybe I have too much money in my pocket. 
Seriously my mouse lack of precision and fast response for gaming and because it is a wireless mouse each time I start the microwave nothing works.
I am ready for the next level and if that can help someone else I'm gonna give you my own review.
My actual mouse is a Logitech MX620. I have this mouse since many years and everything works flawless. We talk about more than 5 years I think. For me it is a dam great durable wireless mouse if your usb dongle is near the mouse. Use a usb cable or a keyboard with usb port or a usb hubs and that shines really. Any other mice I got before that one broke after 6 months to one year. But now the mice have more precision and can switch DPI just by pressing a button. Great for many things including aiming when zooming in FPS.
My previous mice were MS Intellimouse, Logitech LX7, MS optical mouse. My 2 or 3 Intellimouses were great at the time but the cable and buttons failed very fast. Intellimouse was great for confort and almost silent click if you compare to many other mice at that time and also today. The logitech MX620 (similar to the actual M500, The old MX400 has the exact same shape and size but both are not wireless) has a better design and the clicks are also not agressive at all.
I tried many mice at the store and the only one I found very confortable is the MS Scult mobile. LOL. Yes it is a small Bluetooth mouse and I bought one but I am very far for what I want since it is a wireless mouse without side buttons and maybe not good response time and DPI.
But this mouse feel great in my hand and it is more silent than any other mouse I owned or tested on this planet.
I also bought 3 other mice :
The Logitech G502 -Good: Almost everything is great for the mechanic and options for this mouse. 3 DPI selection, very nice wheel, great buttons placement and more. -The Bad: You need to have your arm completly extended to feel great with the mouse. It is not silent at all but the side buttons noise is not that bad.
The Steelseries Rival -Good: 2 DPI selection (just enough) on the top of the mouse , Nice silent Wheel, the top buttons are less noisy than the 2 others mice, ajust the color of 2 distinct lights. More confortable even when your arm are not extended. Feel like an Intellimouse which can be good.
-The Bad: Side buttons are noisy enough to think it is cheap made. The cable is not braided like the 2 others (good or bad?). The higher part of the mouse is at the back and to be very confortable you need to do the same thing as the G502. Extend your arm at almost max to be far from the mouse.
The Mad Catz R.A.T. 7 -Good: You can move parts of the left side and back of the mouse but the default is the best position I found. This mouse has almost everything the G502 has. The right click button and side buttons feel great and not noisy at all. The bottom of the mouse and some parts are made of aluminum -The bad: The left click button is as noisy as the one on the G502. Most of the additional parts are useless since only one gonna fit your need. The right click button has some kind of angle. Your third finger got undesirable friction and can break the right click button after a time. -Maybe missing: since this mouse is made to be modded why the hell we cannot change the height of the front of the mouse to make this mouse feel like a MX620 for example?
If you have any suggestions let me know.
My next try gonna be the Asus Rog Gladius since almost everything can be replaced easily on this mouse including wire and click switch.
Mice that share the same front angle as the Logitech MX620 125.5 X 69 X 41.5 (112g): (The arc is exactly like gripping a ball for full sized mice)
MS Scult mobile (very small but the front angle of the mouse is exactly like the MX620, MX400, M500)
Logitech corded mouse M500 126 X 69 X 42
MX 400 performance laser mouse 125.5 X 69 X 41.5 (138g) (discontinued)
Almost similar:
MX1000, MX1100 126 X 81 X 46 (the angle is even more pronounced) (discontinued)
Ventus X 128.8 X 71 X 42.6 (the front angle is less pronounced at the end of the curve, no carved angle for the thumb but very similar shape overall)
Logitech M705 109 X 71 X 42 (138g) (The mouse is not the same size but the front angle is very similar)
Somewhere similar (with thumb support and front angle less pronounced. You lose the arc somewhere).
G602
MX Master
MX performance
MX revolution (discontinued)
G700s
Picture of the MX620, MX1100 and VX Revolutionlogicool_mx1100_gaibu08.jpg (discontinued)
Picture of the MX1000mx1000.jpg (discontinued)

Seriously my mouse lack of precision and fast response for gaming and because it is a wireless mouse each time I start the microwave nothing works.

I am ready for the next level and if that can help someone else I'm gonna give you my own review.

My actual mouse is a Logitech MX620. I have this mouse since many years and everything works flawless. We talk about more than 5 years I think. For me it is a dam great durable wireless mouse if your usb dongle is near the mouse. Use a usb cable or a keyboard with usb port or a usb hubs and that shines really. Any other mice I got before that one broke after 6 months to one year. But now the mice have more precision and can switch DPI just by pressing a button. Great for many things including aiming when zooming in FPS.
My previous mice were MS Intellimouse, Logitech LX7, MS optical mouse. My 2 or 3 Intellimouses were great at the time but the cable and buttons failed very fast. Intellimouse was great for confort and almost silent click if you compare to many other mice at that time and also today. The logitech MX620 (similar to the actual M500, The old MX400 has the exact same shape and size but both are not wireless) has a better design and the clicks are also not agressive at all.
I tried many mice at the store and the only one I found very confortable is the MS Scult mobile. LOL. Yes it is a small Bluetooth mouse and I bought one but I am very far for what I want since it is a wireless mouse without side buttons and maybe not good response time and DPI.

I also bought 3 other mice :
The Logitech G502 -Good: Almost everything is great for the mechanic and options for this mouse. 3 DPI selection, very nice wheel, great buttons placement and more. -The Bad: You need to have your arm completly extended to feel great with the mouse. It is not silent at all but the side buttons noise is not that bad.
The Steelseries Rival -Good: 2 DPI selection (just enough) on the top of the mouse , Nice silent Wheel, the top buttons are less noisy than the 2 others mice, ajust the color of 2 distinct lights. More confortable even when your arm are not extended. Feel like an Intellimouse which can be good.

The Mad Catz R.A.T. 7 -Good: You can move parts of the left side and back of the mouse but the default is the best position I found. This mouse has almost everything the G502 has. The right click button and side buttons feel great and not noisy at all. The bottom of the mouse and some parts are made of aluminum -The bad: The left click button is as noisy as the one on the G502. Most of the additional parts are useless since only one gonna fit your need. The right click button has some kind of angle. Your third finger got undesirable friction and can break the right click button after a time. -Maybe missing: since this mouse is made to be modded why the hell we cannot change the height of the front of the mouse to make this mouse feel like a MX620 for example?
If you have any suggestions let me know.
My next try gonna be the Asus Rog Gladius since almost everything can be replaced easily on this mouse including wire and click switch.
Mice that share the same front angle as the Logitech MX620 125.5 X 69 X 41.5 (112g): (The arc is exactly like gripping a ball for full sized mice)
MS Scult mobile (very small but the front angle of the mouse is exactly like the MX620, MX400, M500)
Logitech corded mouse M500 126 X 69 X 42
MX 400 performance laser mouse 125.5 X 69 X 41.5 (138g) (discontinued)
Almost similar:
MX1000, MX1100 126 X 81 X 46 (the angle is even more pronounced) (discontinued)
Ventus X 128.8 X 71 X 42.6 (the front angle is less pronounced at the end of the curve, no carved angle for the thumb but very similar shape overall)
Logitech M705 109 X 71 X 42 (138g) (The mouse is not the same size but the front angle is very similar)
Somewhere similar (with thumb support and front angle less pronounced. You lose the arc somewhere).
G602
MX Master
MX performance
MX revolution (discontinued)
G700s
Picture of the MX620, MX1100 and VX Revolutionlogicool_mx1100_gaibu08.jpg (discontinued)
Picture of the MX1000mx1000.jpg (discontinued)
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