Making a custom mold for receiver-in-canal (RIC) hearing aids

Price ranges from 130€ to 170€. So a bit more expensive than the Dutch hearing aids chains, s.a. Beter Horen, Schonenberg

Do the chains offer soft silicone molds nowadays?

I have the cap domes because the open small domes were way too big for my ear canals so maybe I’ll get a good result playing around with making my own molds.