Dear all, I have recently purchased the Ultimate Ears Triple-Fi 10 IEM's including a pair of custom fit sleeves. The Triple-Fi's don't realy suit my hearing 'taste' and therefore I would like to change them for another pair. I would however like to keep using the custom tips without ordering another pair. Therefore I would like to start a discussion thread on which IEM nozzle sizes are comparable. For example; will my custom fit sleeves fit on a Shure 535 or Westone 4r? I am looking forward to hear from you!