A lot of gamers are using controller mods in the gaming world today for a number of reasons. One of the most popular types of controller mods is called a macro mod. This controller modification is very powerful. A macro controller mod basically allows the gamer to setup a macro function using their controller.
A macro is basically a program that repeats various functions. An example of how this would be useful to a gamer is for doing the same process over and over again. A lot of games require repetitive processes to train a character in a game. A macro controller mod can be used to replay a sequence of button presses over and over again giving the gamer a nice advantage.