I'm still against racing these boats in the light air. It would no longer be boat and crew against boat and crew but weather team and $equipment$ against weather team and $equipment$...Sodar @ $100,000 per station, Lidar @ $450,000 per station, etc. Granted, these things are still used but they weigh in a lot less in the grand scheme of things the stronger and steadier the wind is.

Read this article for weather technology in the America's Cup