Carry roughly 60-65 ft and shoot the last 10-15 ft. The guide’s planning figure for the 75 ft task is to shoot 10-15 ft or so to reach 75 ft, which means lengthening the cast to at least 60-65 ft before delivering the fly.

Getting there from a 50 ft carry means changing the cast, not pushing harder:

• The line must go faster, so the rod speeds up — more force over the same distance, or a similar force over a longer distance, which is easier to control and less likely to tail.
• A faster, more deeply bent rod needs a wider casting arc to keep the rod tip path straight, and lengthening the stroke widens the arc at the same time. An open stance, casting-side foot back, helps.
• Hauling is encouraged, and hauls should get longer as the carried line gets longer.
• Keep loops stable, hauls consistent and slack out of the false casting. Avoid last cast syndrome: extra force on the delivery tails and loses the cast.

Source

From Task 15 in the CI Study Guide (2025) (PDF); terms from the FFI Fly Casting Definitions (False Cast, Casting Arc). See also Task 15, distance to 75 ft.