I was impressed when you told me you ran only 300m more in distance than the course length. Impressive, especially at a 4:57/km pace!
This is the type of area that you can master by really concentrating on your compass skills. Once that works, then you just have to run as fast as you can.
A good run in these forests are ones that are < 5min/km.
The biggest deviation from the straight line was the run to the finish line
There was thick bush in the gully by the finish, which he had to go around.