Rod and Lance,
I'm based in the UK unfortunately but thank you so much for the information Rod. I have just ordered an Rm3di with Leaf Aptus II 7 and the Schnieder 35mm Digitar and the reason for the question was to see if the Rm3di would fit in my F-Stop ICU that I have - it will! I have seen your excellent videos several times already Rod and it was instrumental in making my decision over an Alpa as information on the Arca-Swiss products is hard to come by in the UK or on the 'net as you'll know.
On a separate note, do either of you have a recommendation for a loupe (magnification?) to use with this setup?
Many thanks again
Alun