When comparing Mad Catz RAT 7 vs Logitech G502, the Slant community recommends Logitech G502 for most people. In the question“What is the best gaming mouse?” Logitech G502 is ranked 28th while Mad Catz RAT 7 is ranked 37th. The most important reason people chose Logitech G502 is:
With the press of a button, the scroll wheel will go from regular clicking to smooth free-spinning so that scrolling through long documents or webpages is a breeze.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Reliable; keeps on going through the years
It will still work just as well as the day you bought it.
Pro Incredible flexibility
Many parts of the mouse are adjustable with interchangeable pinkie grips and palm rests to a custom weight system. The mouse is able to literally change its size and weight.
Pro Cordless version available
It also comes in a cordless version, called the RAT 9.
Pro Free scrolling wheel
With the press of a button, the scroll wheel will go from regular clicking to smooth free-spinning so that scrolling through long documents or webpages is a breeze.
Pro 11 programmable buttons
With the setup utility, the 11 buttons can be mapped to any key sequence. With 3 possible on-board profiles, and even more profiles stored on the computer, you can use a different setup for every program.
Pro Weight and balance tuning
If you want to change the weight or balance of the mouse, it comes with several that you can insert in the bottom of the mouse.
Pro Good
Cons
Con Laser (not optical) sensor
Laser sensors are just not that great when compared to optical sensors. Often there is acceleration issues with laser sensors.
Con Expensive for what the internal hardware is
Sadly the components inside of this mouse are pretty cheap, ranging from the switches to the laser sensor. For the price Mad Catz is charging one should expect higher quality components.
Con Forward / back buttons wear easily
The two buttons located on the side of the mouse (sometimes known as the page forward and page back buttons for internet browsers) wear out easily after only a few months of usage. That means that it requires extra force to register a button press, all while receiving no touch (or audible clicking) feedback. Frustrating but the mouse does continue working.

Con Uncomfortable "seam" where your thumb and palm meet
