If a group of guys at a particular beach really want to know what size
each other is riding before they go out they could simply mount a
white-board and marker pen somewhere close to the launch area
then just before launching jot down their relevant stats in four
Date : 3 Mar
Rider:____Kite size:____Board size:____Weight:
( I suggest "Rider" to a) reduce the effectiveness of the
inevitable bullshit entries that will appear
b) among riders who know each other this will effectively
indicate skill level )
They could then erase their entry when they come in.
Much more useful than kite size alone and probably a whole lot
easier to organize than getting every kite manufacturer to print
sizes in huge numbers on their kites.