I just got my new He400s and I love them....especially now that I have tried the velour earpads. But I have not quite figured out the trick to popping them fully into place. It seems I can get three of the four little tabs to catch the driver frame, but the fourth one just won't snap into place. The earpads work this way, but I would like to secure them fully.
Any pointers from someone who has fiddled with these or similar Hifiman headphones more than I have so far?