Ok so here's the provisional capitulation Wouter (sort of):).

Thinking about this further and somewhat as a result of your comments I've realised that a market exists for the 430 with kite for those who might currently be sailing a less than optimal 16 two up, and who might want to go single handed on a hi tech. 14 with equal or better performance than what they are accustom to.
I will continue with development along the lines that a purchaser can opt for fitting the kite or not in a campaign where both classes could be catered for.
Bern