Sorry Aidan....
I don't see how pics will help? Enclosed a few of the construction process...I have had other places eyeball it, the original builder claimed I was a flipping idiot and there was nothing wrong with it and yet failed to do what he was last paid to do, ie fix it and refused to let me in his shop to test it, claiming cover issues etc and yet the day before and after, posted video of people in his shop.
The truss rod has bottomed out and the neck needs adjusting further to get the action where I need it to be. For now it is playable but far from perfect, which is why Sims only charged me half their usual fee for levelling etc.
It is a maple neck, single truss rod...No idea what reverse operation means, sorry.
Very few adjustments since I got it....taken back to the original builder as expected/suggested after collecting, adjusted twice maybe by him?
If memory serves, it is half sawn and the neck isn't flamed which I gather causes issues?
The problems I am having are beyond the 12th fret, specifically around the 15th onwards and the neck appears to have a slight twist in it.
Sadly, I will have to sit and see if the neck moves yet again and if so, go to a solicitor and seek advice. I feel there is no way I should be paying to correct his mistake!!!!