I was trying to increase the kill/death ratio in Black Ops 2 and I was fixing too much and shooting like crazy (trying too much, thinking too much, etc.). I tried it and felt better immediately - very good results. Then I think my own bad FPS habits somehow "overcame" the difficulties I was trying to impose on them, and I'm back to where I was. But when I took them off, not only did the controller feel weird without them โ I just didn't like how it felt without them, even after shooting people for hours. They make the controller better. The moral of the story is that even with a new controller and great add-ons like these, if you can't kick your bad habits, you'll be encircled with a gun all over the map and you'll swear you had to give them a new nostril. but if this applies to you and you do NOT use these things, give them a try - you'll be surprised how much they can improve your game.