That looks like a very neat design, sadly I've just replaced my plastic screens with Brooklands, like Atlante has, so will have to put up with these for a bit. They are certainly better than the originals and can be moved, but not as good as the Fairbourne screen I would think.
Can I say how nice your car looks, I saw your original pictures, but seeing it again, just reminded me how much work you'd done and how good it is now.