I'm sorry to say that Roland is full of it.
Average weight of 20 year old US women is 58 kg
http://whijink.home.xs4all.nl/HU/Strandzeiler/Body_measurements_girls_2_to_20_years_old.cj41l022.pdfAverage weight of 20 year old US males is 71 kg
http://whijink.home.xs4all.nl/HU/Strandzeiler/Body_measurements_boys_2_to_20_years_old.cj41l022.pdfAll data supplied by
Developed by the National Center for Health Statistics in collaboration with
the National Center for Chronic Disease Prevention and Health Promotion (2000)
Roland is actually quite active in getting the Tornado reselected into the olympics and like some he feels every tool in the trickbox may be applied towards that end.
No matter what people say about the ISAF weight range selection, ISAF did not choose the wrong numbers. They are perfectly in line with typical demographic body specs.
Wouter