"By increasing the length of the thumb-sticks slightly, precision while aiming is improved dramatically. Your range of motion is increased by 40%, giving you the opportunity to make smaller adjustments and “snap” to targets much faster in first-person shooters. This affords you the luxury of turning up controller sensitivities to get the closest feel to a mouse possible on a console. The greater leverage offers you better control and less force—alleviating thumb-fatigue and adding more comfort to long gaming sessions. In short, this increased accuracy and decreased thumb-fatigue results in more kills and less deaths." In theory... SO far... They work, my stuff has been more accurate.