To delve further into the fun of Super Smash Bros., I bought some parts from this site, these third party buttons among them. I went further with sleeving cables, but ruined it on the first try. The buttons fit well, without any need for further modification to the controller. The only flaws were in the triggers. The retaining clips for the guide bar in the triggers only had one side, the other side had been sheared off. The triggers function just fine with the guide bar retain at one point of contact.