MY EARS CANNOT TAKE THE 8320 ANY LONGER!
I just returned from a trip to Mexico for work, during which, I spent over 12hrs on a bus. I figured this would be the perfect setting for my 8320. Indeed, it was for the right ear. But, oh the left ear! In order to get the nozzle a the correct angle to extend deep into my ear, I had to twist them far backwards, to the point that it was extremely painful. Also, upon getting a seal, the driver flex was so great that they would not play for an extended time. They are great IEMs, but not worth the price unless your ears are exactly the correct size and shape. I have, on occasion gotten a good fit, but it can take me about an hour to find it. I think it's time to trade in and trade up. Next up, probably the GR99. Unless anyone can suggest anything else.