She just asked if I grew up in cold weather. She explained that she can typically tell if a person spent time in cold climates as a youth during her ear examination. I grew up in western Mass and spend a great deal of time as a kid skiing in MA, VT, NH, Canada, and Rockies, so lots of cold conditions.
She is a UConn doctor so a northern transplant to FL, like me. I didn't ask for her literature sources on this, as my hands are full doing new HA trials at this time.
She had me try a cone solution first which did not work well with my canal's "hook shape". She did impressions of my canals and sent them to Phonak to make custom acrylic molds over new "in the ear" recievers. Also, she ordered pair of Phonak Virto "in the ear" HA's with the same custom molds. As the next step, I wanted to trial both the Audeo Lumity Life and the Virto Paradise, both with custom molds. She did say Virtos are more often returned at her practice but welcomed me to give them a try, as everyone is different.