This is a Double Back / Country Road hybrid puzzle.
Part 12 of 12 in the Melon’s Puzzle Zoo preview series.
Answer Entry: Start from the first letter alphabetically that is part of the loop and travel clockwise around the loop until you return to the original letter. Enter the letters you encounter in order. Not all letters may be used.
Highlight to see answer: AFCDJLKIBEH
And that ends the preview series for the test, which can be started a bit less than 24 hours after this post goes up. The test can be taken from this page. As said before, it lasts for a consecutive 2 hour block of your choice this weekend. Best of luck for any of you that decide to take it on. I look forward to your performances and feedback.
EDIT: The test can now be started.