No reason to get upset.
The title of the unregistered thread initiator of 65kg was "lightweight AND lightwind".
It's the combination of these 2 factors that are important in this thread.
I think it remains an interesting topic.
Does a light weight rider need a Formula or something similar (like US or SLW) ?
Is it the best option ?
My take on this is that he can use it for Formula contests where you really need to sail very sharp, but in other conditions probably there are better options.
IS87 / IS101 / IS122 / US147