OK so I have had a second review with Prof Haers and also my NHS surgeon.
NHS Review
Basically, now that they are aware I have requested copies of my medical records, the NHS have gone in to self defence mode and they are now denying anything is wrong with my bite. Despite previously offering me braces or even another surgery to correct this. It is not good form from them. It seems they are irked by my request for medical records.
Prof Haers
He thinks he can correct this by performing upper jaw surgery only, however, a SARPE is needed first to expand upper arch by 6mm or so. He thinks I only need 6 months of orthodontics to prepare me for the operation.
I am still deciding what to do.