Pin position · Mast rake · Tension · Outhaul · Cunningham — from light air to honking wind. Designed by Zim, tuned by North Sails.
Select wind range to see settings:
North Sails mainsail model:
These are your anchor points. All tuning adjusts from here.
Use a Sharpie to mark your jib halyard at each wind setting. Makes consistent rig tension super easy to replicate race after race.
General rule: avoid luff sag as the breeze fills. Adjust rake and bridle together to keep proper leach trim.
With North Sails flex rope: tack down 2–3 cm from the color band. Keep the area between Cunningham and tack flat.
Zim sets the base in the second hole from the front. Adjust forward or back for personal sailing style and weight combo.
Each wedge = 5mm from neutral. More wedge = more mast bend = more power. Dial it in by small increments.
These are starting points. Your weight, technique, and boat will cause variation. Experiment and mark what works.
Screenshot this page or print the settings table below. Tape it to your boat. Study it before racing.
| Breeze | Pin | Rake | Tension | Loos | Outhaul | Wedge |
|---|---|---|---|---|---|---|
| Light 1–9 kts | 4 Back | 20' 9" | 180# | #18 | Wrinkles | 0–0.5 |
| Medium 10–16 kts | 6 Fwd | 20' 7½" | 260# | #22 | Smooth | 1–2 |
| Heavy 16–20 kts | 7 Fwd | 20' 4½" | 280# | #23 | Tight | 1–2 |
| Honking 20+ kts | 8 Fwd | 20' 2½" | 345# | #26 | Very Tight | 0.5–1.5 |
| Breeze | Pin | Rake | Pre-bend | Tension | Outhaul | Wedge |
|---|---|---|---|---|---|---|
| Light 1–9 kts | 4 Back | 20' 9" | 60–70 mm | 180# | 20 mm | Neutral |
| Medium 10–16 kts | 6 Fwd | 20' 7½" | 65–75 mm | 260# | 5–10 mm | 1–2 |
| Heavy 16–20 kts | 7 Fwd | 20' 4½" | 70–80 mm | 280# | 0–5 mm | 1–2 |
| Honking 20+ kts | 8 Fwd | 20' 2½" | 80+ mm | 345# | 0–5 mm | 1–2 |