I just received my JH 16 last week (7 Jan) and it is a perfect fit, not to mention the awesome eargasmic sound it produced. However, my balloon of joy was soon burst after I noticed an "extra bore" in the left monitor (bottom picture), as pointed by the arrow. After a while, I realized that the extra bore is caused by the bubble formed at the side (top picture), which is not connected to the sound tube (thankfully, i guess?) Now, I am usually not a picky person when it comes to aesthetic stuff. However, I can't be helped not to feel disappointed at the lack of quality control of the finishing. It is still working fine now. But, I am worried that this "extra bore" might cause unforeseen problem in the future. I email repairs@ on 7 Jan. After 3 working days, still no reply, then I email angie@ on 10 Jan. Until now, it has been 6 working days, still not a single note of acknowledgment from them. I am clearly disappointed by their poor quality control and customer service which leave much to be desired.