Insert joke regarding withstanding variable insertion depth. On a more serious note, it is indeed impossible to know what a custom sounds like for other people. I have a very striking example which is the SE5. Many people find it a bit dark. My first SE5 was indeed on the dark side (insert joke). I had to have it reshelled as my canal changed post (adult) braces. My new SE5 definitely sound not dark at all, at least in my referential.
11/23/14 at 4:22pm