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shmish said..I'm looking at getting a 900 front wing and probably a 720 wing for 20+ knots. I have a 7.0 flyer and trying to decide on other sails. I can't afford a full quiver 7, 6, 5.2, 4.5. I think 7, 5.2, 4.5 would be good but the 5.2 has an added cost because I'd need a 400 rdm mast for it ($500). I don't think I have the money for this, it's super tight.
7, 6, 4.5 leaves a big gap although I do have a revo 5.0. I suspect 7.0 and 6.0 would have a lot of overlap for me because I doubt I can use 6.0 in much over 18kn but I'm not sure. Fwiw I'm about 67 kg and I'm getting a 75 cm wide freerace foil type of board. If I skip the second smaller wing it would free up a lot of money for sails.
It sounds like the pros are using really big gags between sail sizes (if I heard them correctly).
thanks
I had Flyers in 7, 6, 5.2 and Revos in 5.8, 5.2, 4.7 for foiling. The Revo is an excellent foiling sail IMHO because of its high tension and deep draft (for a wave sail).
When I had the Flyers I used the 7 and 6 quite a bit, and the 5.2 only when it was over 20 knots, on a free-race design AFS-2. As you probably know, the 7 and 6 both rig on a 430 which helps budget a lot.
Are you considering the Starboard foil system? Guessing you are based on the wing sizes you mention. 900 at your weight on the 7.0 would be good for 10-15 knots, and the 6.0 good for 15-20 knots and the 720. Depending on which tail wings and shims you have you might be able to extend this range a bit. You could take the 5.0 out in >20 knots no problem.
IMHO a 1.0m jump in the Flyer at your weight is about right. I would not skip the 6.0. Racers who are sailing higher tension race sails or who are heavier or both could make a bigger jump. I am 90 KGs and liked having both the 6.0 and 7.0 Flyers.