There is nothing new about this kind of sail, is there? It has been standard on big monohulls for many, many years. It's called a genoa jib. It is just relatively new on small multihulls. Right?
Snuffing it seems to be a new twist.
I am often surprised by the inability of mono/multi to see the wood and take ideas from each other more quickly.
I notice the X40s furl and drop their reacher....why not do that as they will have already done the math?