I’ll add that I don’t think it would be just a matter of connecting to the HA’s and then merrily altering the programming in them.
My thinking is that not having the audiogram that the first fitter used to let Connexx calculate the First Fit is problematic.
It seems to me that putting in my own audiogram and then reading from the HA’s somehow makes a different result.
Unless your fitter would provide you with their exported file of your client/sessions from Connexx . Then you’d have their audiogram. How do you ask your fitter THAT question?!