But, I think if you were to build up a custom I20 with 10' carbon beams, carbon boards and blades, lighten up what ever else you could to get it near the Tornado wt., it would be as fast or faster. The I 20 has very fat forward sections and a tall bow, you can really press it downwind very hard before you stuff it.
And you spent a couple of years refining your design and most importantly - learning how to race it.
With the Tornado, there is a lot of detailed information on tuning the rig and how to set the controls. When you ask a question you are likely to get a very precise answer, like 25 cm inboard from ..... . Also you can buy sails with a tuning matrix that was developed by 3 Olympic Teams training against each other for 6 months. This makes it easy to have a fast boat from the beginning. With a 10 ft wide I20 you are starting from scratch. This is one reason the newer faster designs have a hard time beating the Tornado.
