"modern shapes have brought more fun on water"
without doubt;for fat people !!
And there`s no way on earth your average sailor can keep fit just sailing.They simply dont get enough time on water!! Its probably why all these folk at centres are overweight and knackered after sailing for an hour !!!
Besides the wide board revolution must be at least a decade old now;so we may well be seeing its effect with folk letting their weight increase. Being heavier is not the handicap it once was for our sport;perhaps exactly reverse now !!!