Good point Phill,

Mary, its swings and roundabouts, a cat is the best diving platform in the world so they might be willing to trade being able to right the boat. Many kids might find an inverted cat more fun than one the right way up <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />

To my mind the main advantage of an F12 for young children is stability not performance.

Gareth