
Yes, the new bottom plate -- which is called a "Multi Plate" (shown in the first photo in mtimber's post #346) -- is compatible with Manfrotto's RC2 QR system, as well as Arca-Swiss (when turned 90 degrees).
I ordered the Herringbone grip from this E-Bay seller

Glen
Thanks for the info. Which one does it work in the normal orientation for? Arca-Swiss or RC2?
How does this strap compare to the canon E1? I have the E1 on my gripped 5D2 and love it, but I am trying to find solution for gripless 7D. How comfortable is it? From the looks, it seem harder (less comfortable) than the canon version. What does everyone love about this one other than the slick looks?