If that were the case, I would have the W4s.
Edited by High_Q - 6/5/11 at 2:07pm
Ringing is usually caused by a bad fit or seal (I get it on the MEE A151; only IEMs so far that do this to me). Normally, I recommend playing around with tips to get rid of it (as you need a good seal). Well, you have customs. I'd contact the company that made the customs for you and see what they can do.
Hope this helps :)