I must admit I really don't notice the difference. The key thing for me is composition, so whether the image is upside-down, back-to-front (as with my TLR) or the right-way-up makes little difference. I do prefer focussing on a large format GG though, especially my new Maxwell HI-LUX Ultra Brilliant Matte 4.7 screen which often removes the need to use a focussing cloth!