In hindsight it looks like I have made quite a few smaller errors myself. I hope they put the splits here on AP and then I can analyse more in depth.
Just to say that #31 the veg may not have been clearly mapped (though to be fair there isn't a distinct veg boundary on the map either), I used the form line which was indeed well mapped to guide me to the control once I crossed the path and went into the green bit. I suspect something wasn't quite right on the map around #32 though