It's all swings and roundabouts Mike!
The Ritter is light for an 8x10 (about 2.9kgs) but the ebony (being 4x5) is more compact, slightly lighter (2.1kgs) and much better finished.
However, the Ritter's party trick is in its configurable carbon fibre base. It's made up of 3 pairs of tubes - the outer pair support the rear frame, the inner-most pair support the front standard and the middle pair provide the link between the inner & outer tubes and additional extension. Changing to a W/A bellows, turning the middle rail section about face and reversing the front standard allows a short focus lens (150mm in my case) to be focused to infinity without any of the hardware digging into the bellows. You can't do that on an Ebony!
Now, I'm wondering if I can get a 90mm to do the same.
Sadly, though, I've had to return the rear frame. The plumb level wasn't level and I managed to strip the 2 bushes that hold it upright. I don't expect it back until late Jan, at the earliest!!!.
In short, this camera is like the woman your parents disapproved of - far from perfect, but a joy to be with when you understand her.
Frank...