This episode is all about making a custom controller for FPS games. Going through the entire design process from sketch, clay model, 3D scanning, surfacing, ...
On the other hand picking up your thumb is far easier than picking up a mouse, plus you can spin the ball, and the more you get used to trackballs the easier it is to move it exactly how much you want with a quick spin
I think you mean better
(Depending on the user)
Probably also depending on the game. You can’t get as much travel out of it as a mouse on a large pad before resetting your position.
On the other hand picking up your thumb is far easier than picking up a mouse, plus you can spin the ball, and the more you get used to trackballs the easier it is to move it exactly how much you want with a quick spin