Re the heading errors, input his data into Drauks wonderful site and see what you come up with.
The error which is noticeable is the final leg with a true heading of 178º, after adding his marked correction of 2º west, he comes to a magnetic heading of 200º
That being said, any errors he may have come across were obviously corrected or he wouldnt have completed his QXC. How many of us have realised we have made an error but have not corrected on paper because we know what we should be doing in reality.