WildCard999 :
Since your gaming on the couch the trackball will probably be better to use. For FPS gaming another option could be a Xbox/gaming controller. I used to use a trackball quite awhile ago when I played COH (MMO) and it worked fine, took a bit of time to get used to it.
already use an xbox one controller and i love that laid back, console experience it gives me, but I've been pc gaming all my life and refuse to use a joystick for online shooters lol. i will only tolerate it in single player mode lol
😛 so having said that, is it common for players to use trackball for FPS ?