Keep the words "Hobie Tiger" in the front of your mind and read the above post again !
Don't follow you.
The Tiger conforms to ISAF rules as a one design. Any rule changes are presented by the IHCA to ISAF for approval.
The IWCA has no such process or international standing / status.
My point is that, when it suited Hobie, there were many changes made to the spec of the original "One Design" Tiger. I remember hearing that ISAF were perturbed at the many changes to a "One Design".
