I'm not thrilled with the fit, and before going to CTM, I'd like to compare with others a bit.
1. Sliding Out. When I put them in so they're comfortable and flush with my outer ear, even if I carefully break the seal while they're in deep, to make sure there's no air-pressure difference, and even when I'm careful not to move my jaw at all, they slide out a few millimeters. It doesn't break the seal, but it's uncomfortable and, subjectively, some audio clarity seems to be lost.
I think this could probably be fixed by making them extend further into my (unusually straight) ear canals. Actually my first thought upon seeing them was that the didn't go nearly as deep as I expected (like an _inch_ less than my impressions)
2. Flushness. There's no way I could lie down on my side with these, which is something I'd hoped for. I'm guessing there's not much they can do about this, but I'd be interested in others' impressions (no pun intended).