@mickey5909, I did use my old aids when these had to go out for repair. My hearing loss is severe to profound so I need custom molds to get the needed power. It's harder to get decent loaners when a custom mold is needed. The hardest part to deal with was the lack of streaming from my phone with my old aids. My current aids stream whereas my older ones do not. I went back to my old self when wearing my old aids. I cringed when the phone rang since it was so hard to hear on the phone.
Tony in Michigan