NotWal said..
They all look like they need more downhaul going by the wrinkly luffs. Is that a feature of those sails?
It's an extremely sensible and logical feature of many sails that are designed for a wide wind range. It's a great way to move the draft around from a powerful and high-pointing draft-aft shape for light winds to a draft-forward profile for strong winds.That's why you see luff wrinkles in light airs in everything from gold medal winning Lasers to the carbon $750k mainsail on Wild Oats.
On the LT the downhaul is critical.Pull the downhaul on to get rid of the wrinkles and the compression bends the sail, flattening it too much. The leach opens, do you don't point, and the draft moves forward too far.Otherboards get away without it because of narrow apparent wind ranges and pumping mean that they need a less adjustable shape.
Here's an example of a powerful setup with a rig that goes from zero to 25+ - a certain Mr John Bertrand from Australia II. Lots of speed, lots of luff wrinkles because they allow you to create and move around an effective shape, and there's no appreciable drag or downside.