Tiger is old and has had those years to optimise tuning. Capricorn is new and tuning is still to be sorted to some extent. If Capricorn is not faster... why design new boats?
I agree, but the Capricorn has been around for long enough now that it shouldn't be an issue.
"...Why design New boats...." how long after the Tiger did the Nacra F18 come out?
Unfortunately we don't have any Caps in NZ yet but my understanding from contacts in Aus is that the Capricorn probably has an advantage in light winds (as seen in this year's Texel and worlds results) but that it suffers in choppy conditions.
As Jake said, all the platforms are very close. Each will have its day depending on conditions and who is steering. For those looking for a competitive boat at the right price get a second hand Nacra F18 (old version) and put an Infusion wing mast on it. Do that and I don't believe you'll see a noticeable difference between the old and new Nacras around the course.