CHG_CANON wrote:
It's been years since I had a body plate as all my cameras now have L-plates. My older plates for bodies (RRS - arca-swiss) have an anti-twist device, a raised side on the long / horizontal side that holds against the body to prevent twisting with only a single screw into the body. Therefore, that raised side forces the plate to follow the body of the camera, not perpendicular.
Just old fashioned as usual, and don't use tripods all that often. The system works very well with big "footed" lenses.