Mischa has uploaded in his FB page a video reporting upwind foiling with new DNA 'L' rudders a la Fischer.
If so, this would be first proof of an A foiling upwind.
Reviewing Mischa's record, (2012 World Champ and first legal efficient foiling on the DNA) we foresee that Punta Ala Worlds will experience a new breakthrough development as seen as past Takapuna Worlds on the winning downwind foiling. And AC62s at Bermuda in 2017 will definitely fly upwind too under this development rhythm. Video not available in yt yet, check Mischa's FB page Here