I have a monopod with RRS head with clamp. But I do not have any plate. I called RRS, but they told me a couple of rails for the Bronica. I have all 3 Bronica models. But the rail B82 they mentioned is for zoom lens. So I still do not know what rail to order. I can always order the multi-purpose MPR rail(s). Anyone here who has the RRS stuff?