I noticed you reviewed the Kanen KM-948 (4mm Driver Unit) and the JVC HA-FXC50 (5.5mm Driver Unit) on your IEM's thread. But, I finally found the successor of these two.
The Senmai SM-E9106
1. Tips seal perfectly (no need to worry)
2. It is vented across the back for great accuracy!
3. 7mm Driver Unit -can easily be driven with any portable device
I kid you not, they both fail in comparison. They have a beautiful sounding V shape!
Note: Needs to be burned for at least 80 to 100 hours to get the accuracy stated above.
Cons: The wires do feel a little thin. Must take extra care. Wire thickness similar to the Kanen and JVC.
.....I hope you take a chance to review these more accurately and let us know the outcome.