Putting “Real” mics in silicone ears

The holy grail of binaural audio for me has been to effectively interface a non-electret condenser capsule to an anatomically correct ear and ear canal. The simple mechanics limit the size of the diaphragms that could be used. An actual eardrum is on the order of 5mm. My suspicion is that a “real” condenser element would provide the best possible signal to noise ratio. High frequency transient response would certainly suffer (compared to the electret mic) do to the the physics of a higher mass in the diaphragm. This would certainly be a worth-while price to pay for less self-noise...