The Lightning is a very impressive sail indeed. The 10.3 feels very much like the 9.4, just with more bottom end. I had a chance to try one of the new Neil Pryde RS6 10.7 race sails, just for a comparison.
They NP's do point higher than the Lightning, and they are a good toy for serious racing but it felt way more heavy and slow handling than the Lightning.
And.... The price of the Lightning included the mast is less than the NP without mast. And... I've never had a Tushingham sail that broke.