I have these and only tried them a little, but to be honest, I can't really tell that it makes any difference. It certainly makes you position your thumb up higher, and it does affect aiming, but does it actually make it better? For me that's definitely up in the air. Sometimes I think it does nothing, sometimes maybe something good, sometimes I think maybe it just makes it even harder to aim with an analog stick, something I've never really been that good at. I still ended up taking judicious advantage of auto-aiming in Red Dead Redemption, which pretty much makes the things moot. Maybe these are more of a positive if you actually can already aim decently well with an analog stick, or maybe with more time I'll find then more obviously useful. Or maybe not.