Just because the first one of it's kind didn't prove superiority, ...
Hall's mast wasn't the first try; not even inside the A-cat class.
Wouter
I think you guys are missing my point...while I don't know of other rigid wing attempts in the a-cat class, my point is that it hasn't seen much development on an a-cat platform. Given the fact that it's working quite well for the c-class catamarans, I can't imagine that it won't scale to a similar advantage on the A-cat if the design is perfected.