Warning, possible newb content: My first post here! I am in the market for some headphones. I am just getting into doing some boom work. I am primarily considering the Ultrasone Pro550s. These are excellent sounding and very comfortable. They come with extras and a case. I'll definitely go with these over something like the 7506's. My question is whether it would be beneficial to have open-back phones so I can hear the director etc. more easily or if its best to isolate my ears and focus on what the mic is hearing? If closed is the concensus then does anyone use high quality in-ears to avoid the sweat of a hot shoot?