My rMBP's trackpad sounds about twice as loud as my gf's rMBP when I click it. It also lacks the solid feel. If I simply lightly tap the trackpad with 2 fingers (without pressing down), It makes a hollow / loose faint clicking noise and feels as if it touches something underneath. Can this issue even be fixed? If I bring the rMBP to the Genius Bar, they'll probably have a hard time hearing the noise inside the store anyway, and would they even be able to make any adjustment if they can hear the noise?