11/06/2026
**How much thought do you give to the slot between your jib and mainsail?**
It is one of the most talked about, misunderstood, and influential areas of sail trim. Get it right and the boat feels balanced, responsive, and easy to drive. Get it wrong and you can find yourself fighting excessive heel, heavy helm, poor pointing, and inconsistent performance.
At Sanders Sails, we are frequently asked how a jib and mainsail should work together. Sailors often focus on the shape of each sail individually, but the real magic happens in the space between them. The interaction between the two sails governs airflow through the heart of the sail plan and can have a dramatic impact on both speed and handling.
This is exactly why we created our **How To Resources** section; a growing library of in-house articles designed to help sailors get the very best from their sails, whether they are racing around the cans, cruising the coast, or preparing for an offshore passage.
Our latest article, "How to Set the Slot Between Your Jib and Mainsail", explores:
✔️ Why the slot is so important
✔️ How jib and mainsail twist should work together
✔️ The signs that your slot is too open or too closed
✔️ How to improve balance, pointing, and boat speed
✔️ Common mistakes that even experienced sailors make
Every article is written by our sailmakers and sail experts, drawing upon decades of experience designing, manufacturing, and refining sails for some of the world's most demanding sailors and sailing programmes.
Because great sails are only part of the equation. Knowing how to use them is what unlocks their full potential.
Head over to our **How To Resources** page and discover how small adjustments can make a remarkable difference on the water.
https://sanders-sails.co.uk/how-to-set-the-slot-between-your-jib-and-mainsail/
