yes they are.. Another great Spenser design.. Smart man Mr Spenser..

The JD is a similar style boat and lead in boat for I14s..
movement for kids would be mudlarks (6 foot single handed cat rig) 6-10? yr old the JDs to 16 then cherubs (12 foot big bro of Flying Ants) then Javelins or I14s

others go Pelicans/Manlys Flying Ants then up.. Cherubs/29ers/420