This will have the affect that small differences in sail sizes between two boats will see a smaller difference.

Eg: J 30 with spinnaker of 181.3% gets -3 where 179.6 gets 0. A nominal 1.7 % smaller.

For details, please click on "Read More" below.

NEW: February 28, 2015 - Changes to the Mainsail maximum has been made.