Having had further thought to this issue I think that the main concern is with the hydro 2 class. These boats are getting bigger and to get two of them around the bends has been difficult even with the original course, with many accidents. So for this reason I would prefer at least 10 metres at the ends. I am with Paul Upton-Taylor in as much as no clear comparison can be achieved by a non-compliant course with Naviga perimeter length. Keep the course as it was originally laid out by Ian and George.
Seasons greetings to all.