So I got my 400's today. They sound great! They're my first ortho's, and they sound so....clean. However, they are EXTREMELY uncomfortable. I am a little worried about bending the headband, as it doesn't seem to give as easily as a Grado headband. Any solutions to make them a bit less of a vice?
Just hold the headband and stretch it flat, but carefully, a few times. Pause for about 5 second with each stretch and then test it. It's steel, it will reshape.