RE: "softer, earlier planing rig concept" (see Apollo)
Thank you for your reply and for sharing your experience with the Severne Glide Sail.
Oh yes, I can remember this article in the German Surf Magazin. I can see some "circular development" there, which is not bad in this case: When I read the article my old Gaastra Racefoil 7.2 (was it 1987?) came into my mind (deep profile and stiff leech). I think the idea of this project was to avoid huge and heavy sails (9m2 and more). Everybody can handle a 7.5m2 sail, so it's a great idea to get the most out of it. It would be an important contribution to get Windsurfing back to a wider target group.
I'll keep an eye on this development!
Andy (whose setup for Swiss lakes is often a 9m2 with the old F175)