Macca, I think we have to agree to disagree about the unmeasured sails issue.
With regards my experience of the hussle and bussle of getting sails and boat ready, measured and legal prior to big events, I do have experience (all be it a very long time ago!). Clearly if you strongly believe that the1.5mm cloth is as durable as the 3mm cloth, gives no performance advantage and is actually cheaper you should really encourage Alex to join the F18 association and take up the invites to become part of the technical committee that have been offered to him and argue SI's sail cloth position there.

Last edited by NacramanUK; 02/07/13 04:23 PM.