[5] The three existing molds were made from the same plug, but 3D scans made by the One Design Technical Committee (ODTC) between 2005 and 2008 showed variations between the hulls they produced, and ODTC had since expressed the desire to standardise on a single hull form which would be used in the production of all future molds.

"[9][8] The IGC statement implied that the Australian Association were responsible for the differences, that mold #11 was "produced … by massaging scan data which came from the official plug, obviating the need to ship the plug to Australia", that "the method approved by the IGC" had not been followed, and that it was a "deviation" from the class rules.

[8] The president of the International Etchells Class Association of Australia called this "a distorted, misleading and biased view of the facts… in many material respects grossly wrong.

[citation needed] In 1965, Yachting Magazine launched a competition to select a new three-man Olympic keelboat.

However, once the details became available, he built the wooden Shillalah, taking her to Kiel, Germany, where the trials were to be held in the fall of 1966.

As with the first trials, Shillalah II (as the new boat was named) dominated the races, winning ten out of the thirteen that were held, and only just missing out on an eleventh.

It has a fractional sloop rig, a spooned raked stem, a raised counter reverse transom, a skeg-mounted rudder controlled by a tiller and a fixed fin keel.

These include the 8:1 mechanical advantage jib halyard, 4:1 Cunningham, 4:1 mainsheet, foreguy and the topping lift.