Now that the Cooke Triple Convertible XVa has been out for a bit, do we have any test or user reports on how it performs? Is it worth getting rid of the Nikkor 300 and 450 to use one of these instead? Less to carry around & if it is as sharp, contrasty & nice in its results it may be worth looking at. If you are one of the 50 Winners who has one, let us know how it is doing. Especially if you actually did some testing against "known standards" in the 8x10 lens field.