xbox 360 accessories > playstation style thumbsticks
After market replacement set of black Playstaion style thumb sticks with the rounded mushroom top. These fit either a wired or wireless 360 controller or a PS2/3 controller for that matter.
RapidModz uses these on our controllers, just someting about the round top surface that works for us. I find I have to re-grab the stock thumbstick stealing precious moments that I could be using to aim. We used to have ones that were hard to put on the sticks but these are the updated Revision 2 that fit on nice and easy!