Mike: Maybe I'm stating the obvious, but the trick with the Uniloc/Benbo is to grip the camera, or centre column near the camera before loosening the main bolt. I don't find it difficult since I realised that one important rule though I've heard many comments from people who do not like them. I find other tripods more fiddly.
I don't think they are so good for heavy lenses such as a 500mm F4 though I guess the trick there is to mount the camera and lens after setting up the tripod.
Leif
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