The exam asks for wide loops at least about 3 ft wider than the narrow loops you started with; his example opens a 3.5 ft loop to 7 ft. He says “four feet wider”, but the exam document says three.

What the instructor says

• The arc is the width. The casting arc sets the size of the loop — see what makes a loop tight.
• Travel all the way down to about 20 degrees off horizontal, then come back to the same angle on the next stroke or the big loop does not come back.
• Skip that travel and you get an upward trajectory and a skinnier loop; a front loop that climbs in the air will not pass.
• Wide back cast too. The 2025 task wants the back loop wide as well, so open the back-cast arc instead of holding the narrow return. Rotate straight back at that height, not up — rotating up gives a huge loop — and do not swing the rod to the side: a different plane, against the rules.

Putting it to work

1. Measure the narrow loops you start with, then train both the front and the back at least three feet wider.
2. If the front climbs, the rod never came down to 20 degrees.

Source

From the FFI CI walkthrough series by Dayle Mazzarella (Chapter 3 — FFI Casting Instructor Certification Tasks, Fly Fishing Coach International), lesson 3, 00:03:20. See the video library and the task pages for the exam wording; terms follow the FFI Fly Casting Definitions.