No F30, all except the first answer are right.
In these situations with a difficult neighbour it is sensible to agree with the neighbour what one is doing and/or take photos beforehand, but the LR title plan only shows what are called 'General Boundaries', not an exact boundary line.
Need to tread carefully (whilst declining to change the thing) as boundary disputes that start to involve lawyers are to be avoided at all costs. They have cost people tens of thousands - all over a tiny strip.