Oh Kim, I think we might be kindred spirits. If the Scottish GiC you speak of is the Sandyford Glasgow, then I know exactly what you're talking about. They shot me down in flames time after time. Things really started moving for me once my local specialist for NHS Highland took on my case, culminating in him organising a meeting with ENT. head honchos last September. I stated my case to them direct, asking the man and the woman to each imagine putting on each others voice, and to imagine doing that all the time, consciously.
In January they agreed to fund me for CTA, I met with Prof. Wilson in June (delayed because of burocratic error!) and then she threw the curveball to me my suggesting the glottoplasty instead. Now I was well aware of the amazing Yeson work, but I hadn't clocked what their actual procedure was. Once I did... well, I'm writing this from my hospital bed just now, lol x