I'm not sure why you don't want to go custom, Antonio, but I have been making a lot of cross-country trips with lately and the change in comfort alone from Shure E500s to the JH|13 is worth a lot to me. I can have them in for 6+ hours without any discomfort or irritation, etc, and I could never say that about the UE and Shure universals I have had. Plus, it is simply the best sound I have heard from an IEM, so there's that too.