Wouter, Mitch Booth's sail testing comment was even more telling on sail building reality. Out of 10 sails built and tested 1 usually improves performance, the other 9 go backwards!

Gordon, keep in mind dacron may stretch over time but it is gradual and not like a rubber band. Several posters mentioned dacron as a more tuneable sail.

Found out from one boat builder they had compared boat performance with both dacron and laminates. Some mast/hull configurations perform better with dacron.

Might be wise to know the sailcloth source and material level on the quality scale before you leap. Poor laminates do exist as do outstanding dacrons.

Sail fast, Tom G