Personal preference I guess. I used to use the EAR kind of yellow foam in my flight helmet with the ICS volume on 10 and still hear the radio. Never had a problem.
Now that I am a bit older, I have tried them on a long boat delivery (power boat with loud engine noise) and gotten a head ache.
Now that I am a bit older, I have tried them on a long boat delivery (power boat with loud engine noise) and gotten a head ache.