sethnintendo on 13 February 2016
This used to happen to me with the c stick (yellow stick) on the GC wired controllers. The B button kept getting stuck also on multiple controllers. I kept sending them back to Nintendo and eventually I gave up. I bought a Wavebird controller and never had problems with buttons sticking or c stick not being centered (would be obvious in Smash because screen would tilt). So I bought 4 Wavebirds and never looked back.
Perhaps Microsoft wants you to upgrade to the Elite.
