This lady has tried everything including the taping. In fact one of the problems is that she is too well informed and in my opinion is over focused on the condition.
Having said all that she has finally decided to go down the surgery route as her pain is 24 hours a day. She tells me now that she has not put her heal down for 20 years following her original Evans procedure.
I am not formally treating her instead acting as another source of information.

I just hope the tendon lengthening technique suggested is going to be the answer. I do feel that she has gone past trying all the manual techniques, biomechanics and medication. I will reply with the outcome of the surgery for interest on the forum.

Many thanks for all the information sent through from all experiences (clinician and/or personal).