Some time ago I ordered a new Sennheiser HD 25 headphone. It turned out it had quite a heavy pinch in the cable and being nervous about the pinch getting worse over time and eventually affecting the performance of the headphone I contacted the webstore about the issue. The headphone also had an adjustment slider more loosely fitted than the slider on the other cup. Never made the cup fall down, but swiveled more because of it. The webstore told me that I should send it back and they would send me another one when they received it. They made a mistake and sent me back my money instead. I had to order them again if I wanted another pair they said. Because I would go travel I did not want to order a new pair immediately. So I waited a little while. I recently ordered another HD 25 (different webstore this time) This one also has a loosely fitted slider and more so than the other one. Is this a normal variation on this model or have I just been unlucky? Will this affect functionality of the headphone over time or just the look of it when the headphone is lying down? Anyone else here that have experienced the same thing with a new pair?