I have always felt that if I had the equipment, I could adjust my aids to work, but to relate to someone else to make the adjustment is a never-ending battle.
I have asked to have my own equipment but to no avail. I think it is a control thing audiologists have. Where to buy the software and equipment is the question.
Be careful about model selection for Phonak Lumity because the new software enhancements for that platform are only available in the Premium/L90 model.