I think the question "So that is the best custom out there?" is problematic as it leads to fanboyism, which is a kind of cancer on head-fi. First, read my review of the MG6Pro. Don't miss the third post of the thread, which contains comparisons to other earphones, including the JH16, and some other issues. I've tried to avoid writing a fanboy advertisement like many "reviews" out there, but instead an honest account of what I am hearing, plus a good sense of what I am listening for, so you can make an informed choice based on what you would like to hear.