How are they for ear pressure issues, though? I was about to post n this - I just flew back after catching a cold. I thought about delaying my return but figured it would only get worse for a few days so decided to fly. I didn't get pain, but my ear drums have not popped yet after two days. Of course I also have a terrible head cold so that is another reason. But I thought about investing in a pair just in case for future trips.