Sorry to be a doubter but I think the majority of times ( as confirmed by most of the sailors at Datchet )when going directly downwind ( ie windward leeward courses ) we're finding it is quicker to go deep downwind sitting in with the hull well up. It may not be as fast over the water nor feel really cool as when out on the wire but from our racing it is definately quicker to the mark to be sitting in.

The only time it really pays to be out on the wire is if you can't make the mark sitting in and need the extra ballast out. Just a personal thinking on the subject.