Another vote for the CEPs. I used to not wear any type of secondary protection (other than the flight helmet) and would get head aches after nearly every flight. It was attributed to the noise in the cockpit, my helmet not fitting properly (egg-head) and having to run the volume up full due to not being able to hear the radio over the engine noise. When I got to the RAG, the CEPs came out and I was hooked. Now, if you don't route the wire from the earplug properly, it'll give you a hotspot on your ear. And they are a tad uncomfortable (I've worn them for 5 hour flights), however I won't fly without them now. I turn the radios way down now without fear of missing calls.