Tire wear
 

My 2014 A5 Quattro -70K- miles has been wearing tires on the inside edge. I've had wheel alignment (all 4) checked twice, with no big errors reported. The most recent is from the left rear, and I see some scoring on the brake disc (only this one), too. Could tire abnormal tire wear be caused by dragging brakes? Are there any unusual tricks in removing brake pads?