Just received these Surefire EP5 Sonic Defenders. They are great -- fit snugly in my ears on the very first try, which is an absolute first for me and ear plugs. They set in place nice and comfortable, even feel pretty much flush. But as soon as I pull my helmet on, they come loose. Not all the way out, but enough that they're not doing a friggin thing. I am now beyond pissed, because nothing works in my ****ed up ears. I really don't know what else to do, but I have to do something because my hearing is going to total crap.