To be honest when i first got onto a 16 i was 15 years old and only weighed 58kg and well my crew weighed the same. At first we didn't know we could reef your main but now we do. The only problem now is i own a new boat and all new 16's dont have a reefable main so it comes back to skill and rigging. You will be surprised who much rigging can take the power out of your sails so just dont worry about reefing and have fun trapezing.
From Julian