Hi-nice review vlenbo! The pictures are helpful, makes me wonder about fit. I know you didn't have any problem with it, I tend to have a problem with AT phones and the chambers they use. The IM70, for instance, or the old IK, which I have a heck of a time getting to seal and sit comfortably. I'm beginning to realize I do better with the no chamber iems (Doppio, Heaven V, Etymotic Research). Westone is a bit of an exception, but the chamber is actually designed with the ear pinna in mind. Wondering if others have the same response to AT (JVC chambers aren't much better) design. Does sound like a good sounding iem, though. The review does make them tempting, but I'm hesitant, for the above reasons.