I find it depends on the game I am playing. I use a Cyborg RAT mouse and I have a little button just in front of the scroll wheel I can use to turn up and down the DPI on the fly, which is very useful. I recommend you look for something similar, i.e a mouse with a high DPI that can easily be changed at any time as it is a lot more versatile and you'll be able to find what is comfortable for you.