Controller Sensitivity problem

[TimEwaVeZer0]

So i bought the chrome case for my controller with the LED and wire it up played on it for 20 minutes and it worked great. The next time i started playing i noticed that i had to press extra hard on the A,B,X,Y buttons to get them to respond, this is not a case of the way i put the controller back together as i have already tested this. I even unwired the LEDs and tested it back in its original form and it still only responds to lead fingers. Any ideas or similar problems?

[TeamXCM]

Sounds like the rubber part under the buttons is not correctly in place or is worn out, take it out and reseat it and try that.