Re: EMAD2: foam ring keeps falling off
Maybe rub your finger along the ring to press it into the head more. When you put the foam in it, it should hold it in place better if you're careful not to pry up the ring too much when installing the foam.
If that fails, maybe you could tape a small coin-size piece of velcro tape at the top of the head, right round the ring. Put the other part on the foam ring. That should hold it in place.