I'm cutting down an old Tornado sail for the Va'a Motu. The mast I have has a built in curve so I can't use the old luff of the Tornado sail. I traced the curve of the mast onto the sail and added a percentage of luff curvature to that. I'm using plastic slugs instead of a boltrope so that the sail comes down easily without me having to pull on it.
A few more jobs left to do on the hull: a shim between the leeboard and the hull side to make the leeboard aim straight ahead, make a tiller, and a snubbing horn for the sheet.