Firstly, I'll list my equipment: Sinar F2 Gitzo 1325 RRS BH-55 w/B2 Pro Clamp. At the moment I don't have any method of attaching the F2 to the Clamp. My BH-55 isn't involved at all and is sat in my big box of camera toys. I attach the monorail clamp to the tripod, and just drop the F2 into the clamp and tighten down. I've found that so far lens movements make up for the fact that I can't tilt the camera. It does seem to me that for landscapes I'll actually rarely want to tilt the camera, but being able to pan may be useful. What do people normally do? One issue I can see is that with the head, clamp AND monorail clamp the camera will be quite a distance from the tripod. This seems inherently unstable. Another is that I haven't found an arca-swiss style QR plate that will attach to a Sinar Monorail Clamp in a secure way. For example, on my Mamiya RZ67, the QR plate looks like this: http://reallyrightstuff.com/mmRRS/Images/full/B43.gif Note the two pins that stop the camera from rotating on the clamp and relieve stress from the thread. So what's the done thing for Sinar (or indeed other) monorail cameras?