ACC sought a legal opinion from Bruce Corkill QC based on Phil Birds report. QC stands for Queen's Counsel - so as far as legal matters are concerned in New Zealand - that's pretty high up. Again I've had to upload them as images. If you need to make your screen bigger so you can read it, you can hold down ctrl and press the + key several times, or you can just double click on a portion of the text which will open them up so you can read it on a bigger but separate screen.
Based on this information - although I think there are a few thigs that aren't correct in these documents, I don't think I have a leg to stand on fighting it, as it boils down to scar tissue pulling the electrodes out.