I would hope your Costco HCP can advise you on this. It probably makes a difference if your canal takes a sharp turn, too. The receiver is supposed to go far enough into the ear canal that the M&RIE mic is just at the opening of your ear canal. My left ear canal is short and narrow and takes a sharp turn. I have custom ReSound molds, and the M&RIE mics protrude out of my ear canals a little bit, about at the end of my tragus, whereas the ideal place is about the opening of the intertragic notch in terms of depth in the ear canal. I still think the sound is excellent, have a good sense of sound localization, and get pretty good wind suppression compared to the sound from the mics on the bodies of my Omnias, which are selectively on, the M&RIE mics off, in Front Focus mode.
Perhaps for someone wearing domes, the receivers can be inserted further in the ear. Don’t know if a power dome works for you, but with your loss, custom molds might do the best job of preventing feedback from the M&RIE mics and retaining bass in your ear canals. I hope your HCP gives good advice and allows you to go back to standard receivers at no charge if you don’t like the M&RIE mics. My audi told me switching out would be no problem, but I paid for custom molds to try the M&RIE receivers.
Source:
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