Been riding a Cosmic 2 cam narrow sleeve '13 now for a few year's, thought a new one would be nice.
Same luff length, same boom, but now the sail hangs over the clew top and bottom, with the longest batten the one below the boom. Narrower head by far, longer roach area battens and area, the sail seems much lighter in weight, especially during botched transitions, rigs on standard SDM's much nicer than the '13. Very happy with the new sail.

You can see them in the '17 Gaastra video with Matt riding, but I think he's on a Vapor. The sail we bought is one of the video sails for Tabou '17 and Gaastra '17, with the longest batten below the boom, and beyond the clew.