There are a number of sail makers in the world who can design and have the knowledge and skills to make sails for large yachts.
There are very few who have the expensive and essential sewing machines for these sails, sufficiently large premises to lay them out in, the ability to make the custom built hardware when necessary, or the capital to purchase the necessary sailcloth. They are also unable to pay and maintain a regular team of highly skilled sail makers essential for this work. This is why the client can count on the fingers of one hand the number of sail makers engaged in this specialized production.
Rolly Tasker Sails not only qualifies on all counts, but is one of them.