Hi Colin,
Some work has been done in standardising the SI’s in the past, but it is time for them to be looked at again as they tend to drift off over the years as they get picked up by different clubs and committees. I am sure the UKWA would appreciate your input if this is your interest and speciality. Do you have what you consider to be a standard SI? We do have the results of a study in this area; but would prefer to leave this until after the sailing season; too much on at the moment! Would appeciate your input over the winter. Ray