I have a 15" rMBP (late 2013), and I noticed today that the left side of the trackpad takes a lot less force than the right side to depress. Like 1/10 the amount of force. The left side also makes almost no noise when depressing. But the right side is really loud and takes much more force to depress. The trackpad still depresses everywhere, and a click is still registered. Has this happened to anyone else, and is this a problem that can be fixed?