Tuning guide North
Deux écoles:
San Diego
https://www.northsailsod.com/class/j24/j24_tuning_sandiego.html
Newport
https://www.northsailsod.com/class/j24/j24_tuning_newport.html
Elvström Sobstad
https://www.elvstrom-sails.com/truc-astuce-faveur.html
Tuning guide...