Why don't you guys just write down the Nacra 20 sail measurement rule and be done with it. The class measures the sails or you show an independent cert of measurement at events that are important.

If an owner wants a custom sail... they will go where they feel they get the best service and design. Locally, our sailmaker would pull the mast off... Measure it's static bend properties. Discuss with you what you want.... Factor in your crew weight and modify his basic design with this custom luff curve..

Fly the sail and make sure you are happy with the product.

Big Boat sailmakers work the same way.... This idea that you purchase a sail off the rack (and it works for you as is... or you go and spend more and have it recut) is relic of the past... Great if you are selling 1000 sails a year and you control the rules which give you this monopoly. ...

In your case... What design parameter do you give the sailmaker who is to do all of the RandD.... I want a sail for a 325 min team... it should be flat and fast.... versus... I want a sail for my 425 lb team... it better be full and tunable with a lot of grunt...

hmm... In the end... you spend 2K and you are still not happy with your sail.... it's not the sailmaker... its the underlying philosophy WHY?